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* Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012 Apple Inc. All rights reserved.
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* Copyright (C) 2012 Google Inc. All rights reserved.
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of
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* its contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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* THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#ifndef FrameLoaderClient_h
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#define FrameLoaderClient_h
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#include "FrameLoaderTypes.h"
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#include "LayoutMilestones.h"
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#include <wtf/Forward.h>
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#include <wtf/Vector.h>
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#import <Foundation/Foundation.h>
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typedef id RemoteAXObjectRef;
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typedef void* RemoteAXObjectRef;
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typedef class _jobject* jobject;
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#if PLATFORM(MAC) && !defined(__OBJC__)
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class NSCachedURLResponse;
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template<class T> class Handle;
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class AuthenticationChallenge;
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class CachedResourceRequest;
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class DOMWindowExtension;
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class DOMWrapperWorld;
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class FrameNetworkingContext;
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class HTMLAppletElement;
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class HTMLFormElement;
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class HTMLFrameOwnerElement;
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#if ENABLE(PLUGIN_PROXY_FOR_VIDEO)
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class HTMLMediaElement;
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class HTMLPlugInElement;
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#if ENABLE(WEB_INTENTS)
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class NavigationAction;
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class ProtectionSpace;
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class ResourceRequest;
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class ResourceResponse;
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#if ENABLE(MEDIA_STREAM)
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class RTCPeerConnectionHandler;
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class SecurityOrigin;
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class SocketStreamHandle;
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class StringWithDirection;
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class SubstituteData;
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typedef void (PolicyChecker::*FramePolicyFunction)(PolicyAction);
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class FrameLoaderClient {
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// An inline function cannot be the first non-abstract virtual function declared
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// in the class as it results in the vtable being generated as a weak symbol.
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// This hurts performance (in Mac OS X at least, when loadig frameworks), so we
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// don't want to do it in WebKit.
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virtual bool hasHTMLView() const;
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virtual ~FrameLoaderClient() { }
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virtual void frameLoaderDestroyed() = 0;
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virtual bool hasWebView() const = 0; // mainly for assertions
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virtual void makeRepresentation(DocumentLoader*) = 0;
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virtual void forceLayout() = 0;
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virtual void forceLayoutForNonHTML() = 0;
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virtual void setCopiesOnScroll() = 0;
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virtual void detachedFromParent2() = 0;
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virtual void detachedFromParent3() = 0;
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virtual void assignIdentifierToInitialRequest(unsigned long identifier, DocumentLoader*, const ResourceRequest&) = 0;
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virtual void dispatchWillSendRequest(DocumentLoader*, unsigned long identifier, ResourceRequest&, const ResourceResponse& redirectResponse) = 0;
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virtual bool shouldUseCredentialStorage(DocumentLoader*, unsigned long identifier) = 0;
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virtual void dispatchDidReceiveAuthenticationChallenge(DocumentLoader*, unsigned long identifier, const AuthenticationChallenge&) = 0;
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virtual void dispatchDidCancelAuthenticationChallenge(DocumentLoader*, unsigned long identifier, const AuthenticationChallenge&) = 0;
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#if USE(PROTECTION_SPACE_AUTH_CALLBACK)
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virtual bool canAuthenticateAgainstProtectionSpace(DocumentLoader*, unsigned long identifier, const ProtectionSpace&) = 0;
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virtual void dispatchDidReceiveResponse(DocumentLoader*, unsigned long identifier, const ResourceResponse&) = 0;
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virtual void dispatchDidReceiveContentLength(DocumentLoader*, unsigned long identifier, int dataLength) = 0;
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virtual void dispatchDidFinishLoading(DocumentLoader*, unsigned long identifier) = 0;
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virtual void dispatchDidFailLoading(DocumentLoader*, unsigned long identifier, const ResourceError&) = 0;
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virtual bool dispatchDidLoadResourceFromMemoryCache(DocumentLoader*, const ResourceRequest&, const ResourceResponse&, int length) = 0;
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virtual void dispatchDidHandleOnloadEvents() = 0;
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virtual void dispatchDidReceiveServerRedirectForProvisionalLoad() = 0;
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virtual void dispatchDidCancelClientRedirect() = 0;
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virtual void dispatchWillPerformClientRedirect(const KURL&, double interval, double fireDate) = 0;
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virtual void dispatchDidNavigateWithinPage() { }
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virtual void dispatchDidChangeLocationWithinPage() = 0;
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virtual void dispatchDidPushStateWithinPage() = 0;
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virtual void dispatchDidReplaceStateWithinPage() = 0;
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virtual void dispatchDidPopStateWithinPage() = 0;
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virtual void dispatchWillClose() = 0;
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virtual void dispatchDidReceiveIcon() = 0;
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virtual void dispatchDidStartProvisionalLoad() = 0;
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virtual void dispatchDidReceiveTitle(const StringWithDirection&) = 0;
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virtual void dispatchDidChangeIcons(IconType) = 0;
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virtual void dispatchDidCommitLoad() = 0;
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virtual void dispatchDidFailProvisionalLoad(const ResourceError&) = 0;
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virtual void dispatchDidFailLoad(const ResourceError&) = 0;
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virtual void dispatchDidFinishDocumentLoad() = 0;
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virtual void dispatchDidFinishLoad() = 0;
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virtual void dispatchDidLayout() { }
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virtual void dispatchDidLayout(LayoutMilestones) { }
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virtual Frame* dispatchCreatePage(const NavigationAction&) = 0;
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virtual void dispatchShow() = 0;
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virtual void dispatchDecidePolicyForResponse(FramePolicyFunction, const ResourceResponse&, const ResourceRequest&) = 0;
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virtual void dispatchDecidePolicyForNewWindowAction(FramePolicyFunction, const NavigationAction&, const ResourceRequest&, PassRefPtr<FormState>, const String& frameName) = 0;
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virtual void dispatchDecidePolicyForNavigationAction(FramePolicyFunction, const NavigationAction&, const ResourceRequest&, PassRefPtr<FormState>) = 0;
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virtual void cancelPolicyCheck() = 0;
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virtual void dispatchUnableToImplementPolicy(const ResourceError&) = 0;
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virtual void dispatchWillRequestResource(CachedResourceRequest*) { }
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virtual void dispatchWillSendSubmitEvent(PassRefPtr<FormState>) = 0;
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virtual void dispatchWillSubmitForm(FramePolicyFunction, PassRefPtr<FormState>) = 0;
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virtual void revertToProvisionalState(DocumentLoader*) = 0;
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virtual void setMainDocumentError(DocumentLoader*, const ResourceError&) = 0;
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// Maybe these should go into a ProgressTrackerClient some day
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virtual void willChangeEstimatedProgress() { }
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virtual void didChangeEstimatedProgress() { }
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virtual void postProgressStartedNotification() = 0;
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virtual void postProgressEstimateChangedNotification() = 0;
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virtual void postProgressFinishedNotification() = 0;
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virtual void setMainFrameDocumentReady(bool) = 0;
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virtual void startDownload(const ResourceRequest&, const String& suggestedName = String()) = 0;
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virtual void willChangeTitle(DocumentLoader*) = 0;
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virtual void didChangeTitle(DocumentLoader*) = 0;
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virtual void committedLoad(DocumentLoader*, const char*, int) = 0;
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virtual void finishedLoading(DocumentLoader*) = 0;
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virtual void updateGlobalHistory() = 0;
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virtual void updateGlobalHistoryRedirectLinks() = 0;
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virtual bool shouldGoToHistoryItem(HistoryItem*) const = 0;
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virtual bool shouldStopLoadingForHistoryItem(HistoryItem*) const = 0;
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virtual void updateGlobalHistoryItemForPage() { }
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// This frame has displayed inactive content (such as an image) from an
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// insecure source. Inactive content cannot spread to other frames.
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virtual void didDisplayInsecureContent() = 0;
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// The indicated security origin has run active content (such as a
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// script) from an insecure source. Note that the insecure content can
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// spread to other frames in the same origin.
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virtual void didRunInsecureContent(SecurityOrigin*, const KURL&) = 0;
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virtual void didDetectXSS(const KURL&, bool didBlockEntirePage) = 0;
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virtual ResourceError cancelledError(const ResourceRequest&) = 0;
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virtual ResourceError blockedError(const ResourceRequest&) = 0;
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virtual ResourceError cannotShowURLError(const ResourceRequest&) = 0;
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virtual ResourceError interruptedForPolicyChangeError(const ResourceRequest&) = 0;
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virtual ResourceError cannotShowMIMETypeError(const ResourceResponse&) = 0;
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virtual ResourceError fileDoesNotExistError(const ResourceResponse&) = 0;
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virtual ResourceError pluginWillHandleLoadError(const ResourceResponse&) = 0;
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virtual bool shouldFallBack(const ResourceError&) = 0;
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virtual bool canHandleRequest(const ResourceRequest&) const = 0;
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virtual bool canShowMIMEType(const String& MIMEType) const = 0;
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virtual bool canShowMIMETypeAsHTML(const String& MIMEType) const = 0;
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virtual bool representationExistsForURLScheme(const String& URLScheme) const = 0;
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virtual String generatedMIMETypeForURLScheme(const String& URLScheme) const = 0;
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virtual void frameLoadCompleted() = 0;
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virtual void saveViewStateToItem(HistoryItem*) = 0;
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virtual void restoreViewState() = 0;
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virtual void provisionalLoadStarted() = 0;
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virtual void didFinishLoad() = 0;
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virtual void prepareForDataSourceReplacement() = 0;
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virtual PassRefPtr<DocumentLoader> createDocumentLoader(const ResourceRequest&, const SubstituteData&) = 0;
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virtual void setTitle(const StringWithDirection&, const KURL&) = 0;
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virtual String userAgent(const KURL&) = 0;
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virtual void savePlatformDataToCachedFrame(CachedFrame*) = 0;
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virtual void transitionToCommittedFromCachedFrame(CachedFrame*) = 0;
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virtual void transitionToCommittedForNewPage() = 0;
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virtual void didSaveToPageCache() = 0;
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virtual void didRestoreFromPageCache() = 0;
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virtual void dispatchDidBecomeFrameset(bool) = 0; // Can change due to navigation or DOM modification.
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virtual bool canCachePage() const = 0;
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virtual void download(ResourceHandle*, const ResourceRequest&, const ResourceResponse&) = 0;
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virtual PassRefPtr<Frame> createFrame(const KURL& url, const String& name, HTMLFrameOwnerElement* ownerElement, const String& referrer, bool allowsScrolling, int marginWidth, int marginHeight) = 0;
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virtual PassRefPtr<Widget> createPlugin(const IntSize&, HTMLPlugInElement*, const KURL&, const Vector<String>&, const Vector<String>&, const String&, bool loadManually) = 0;
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virtual void recreatePlugin(Widget*) = 0;
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virtual void redirectDataToPlugin(Widget* pluginWidget) = 0;
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virtual PassRefPtr<Widget> createJavaAppletWidget(const IntSize&, HTMLAppletElement*, const KURL& baseURL, const Vector<String>& paramNames, const Vector<String>& paramValues) = 0;
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virtual void dispatchDidFailToStartPlugin(const PluginView*) const { }
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#if ENABLE(PLUGIN_PROXY_FOR_VIDEO)
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virtual PassRefPtr<Widget> createMediaPlayerProxyPlugin(const IntSize&, HTMLMediaElement*, const KURL&, const Vector<String>&, const Vector<String>&, const String&) = 0;
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virtual void hideMediaPlayerProxyPlugin(Widget*) = 0;
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virtual void showMediaPlayerProxyPlugin(Widget*) = 0;
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virtual ObjectContentType objectContentType(const KURL&, const String& mimeType, bool shouldPreferPlugInsForImages) = 0;
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virtual String overrideMediaType() const = 0;
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virtual void dispatchDidClearWindowObjectInWorld(DOMWrapperWorld*) = 0;
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virtual void documentElementAvailable() = 0;
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virtual void didPerformFirstNavigation() const = 0; // "Navigation" here means a transition from one page to another that ends up in the back/forward list.
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virtual void didExhaustMemoryAvailableForScript() { };
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virtual void didCreateScriptContext(v8::Handle<v8::Context>, int extensionGroup, int worldId) = 0;
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virtual void willReleaseScriptContext(v8::Handle<v8::Context>, int worldId) = 0;
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virtual bool allowScriptExtension(const String& extensionName, int extensionGroup, int worldId) = 0;
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virtual void registerForIconNotification(bool listen = true) = 0;
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// Allow an accessibility object to retrieve a Frame parent if there's no PlatformWidget.
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virtual RemoteAXObjectRef accessibilityRemoteObject() = 0;
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virtual NSCachedURLResponse* willCacheResponse(DocumentLoader*, unsigned long identifier, NSCachedURLResponse*) const = 0;
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#if PLATFORM(WIN) && USE(CFNETWORK)
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// FIXME: Windows should use willCacheResponse - <https://bugs.webkit.org/show_bug.cgi?id=57257>.
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virtual bool shouldCacheResponse(DocumentLoader*, unsigned long identifier, const ResourceResponse&, const unsigned char* data, unsigned long long length) = 0;
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virtual bool shouldUsePluginDocument(const String& /*mimeType*/) const { return false; }
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virtual bool shouldLoadMediaElementURL(const KURL&) const { return true; }
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virtual void didChangeScrollOffset() { }
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virtual bool allowScript(bool enabledPerSettings) { return enabledPerSettings; }
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virtual bool allowScriptFromSource(bool enabledPerSettings, const KURL&) { return enabledPerSettings; }
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virtual bool allowPlugins(bool enabledPerSettings) { return enabledPerSettings; }
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virtual bool allowImage(bool enabledPerSettings, const KURL&) { return enabledPerSettings; }
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virtual bool allowDisplayingInsecureContent(bool enabledPerSettings, SecurityOrigin*, const KURL&) { return enabledPerSettings; }
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virtual bool allowRunningInsecureContent(bool enabledPerSettings, SecurityOrigin*, const KURL&) { return enabledPerSettings; }
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// This callback notifies the client that the frame was about to run
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// JavaScript but did not because allowScript returned false. We
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// have a separate callback here because there are a number of places
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// that need to know if JavaScript is enabled but are not necessarily
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// preparing to execute script.
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virtual void didNotAllowScript() { }
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// This callback is similar, but for plugins.
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virtual void didNotAllowPlugins() { }
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// Clients that generally disallow universal access can make exceptions for particular URLs.
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virtual bool shouldForceUniversalAccessFromLocalURL(const KURL&) { return false; }
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virtual PassRefPtr<FrameNetworkingContext> createNetworkingContext() = 0;
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virtual bool shouldPaintBrokenImage(const KURL&) const { return true; }
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// Returns true if the embedder intercepted the postMessage call
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virtual bool willCheckAndDispatchMessageEvent(SecurityOrigin* /*target*/, MessageEvent*) const { return false; }
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#if ENABLE(WEB_INTENTS)
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virtual void dispatchIntent(PassRefPtr<IntentRequest>) = 0;
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#if ENABLE(WEB_INTENTS_TAG)
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virtual void registerIntentService(const String&, const String&, const KURL&, const String&, const String&) { }
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virtual void dispatchWillOpenSocketStream(SocketStreamHandle*) { }
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virtual void dispatchGlobalObjectAvailable(DOMWrapperWorld*) { }
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virtual void dispatchWillDisconnectDOMWindowExtensionFromGlobalObject(DOMWindowExtension*) { }
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virtual void dispatchDidReconnectDOMWindowExtensionToGlobalObject(DOMWindowExtension*) { }
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virtual void dispatchWillDestroyGlobalObjectForDOMWindowExtension(DOMWindowExtension*) { }
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#if ENABLE(MEDIA_STREAM)
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virtual void dispatchWillStartUsingPeerConnectionHandler(RTCPeerConnectionHandler*) { }
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#if ENABLE(REQUEST_AUTOCOMPLETE)
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virtual void didRequestAutocomplete(PassRefPtr<FormState>) = 0;
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virtual bool allowWebGL(bool enabledPerSettings) { return enabledPerSettings; }
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// Informs the embedder that a WebGL canvas inside this frame received a lost context
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// notification with the given GL_ARB_robustness guilt/innocence code (see Extensions3D.h).
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virtual void didLoseWebGLContext(int) { }
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} // namespace WebCore
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#endif // FrameLoaderClient_h