// Copyright 2013 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. #include "content/renderer/render_frame_impl.h" #include #include #include "base/command_line.h" #include "base/debug/alias.h" #include "base/debug/dump_without_crashing.h" #include "base/i18n/char_iterator.h" #include "base/strings/utf_string_conversions.h" #include "base/time/time.h" #include "content/child/appcache/appcache_dispatcher.h" #include "content/child/plugin_messages.h" #include "content/child/quota_dispatcher.h" #include "content/child/request_extra_data.h" #include "content/child/service_worker/web_service_worker_provider_impl.h" #include "content/common/frame_messages.h" #include "content/common/socket_stream_handle_data.h" #include "content/common/swapped_out_messages.h" #include "content/common/view_messages.h" #include "content/public/common/content_constants.h" #include "content/public/common/content_switches.h" #include "content/public/common/url_constants.h" #include "content/public/renderer/content_renderer_client.h" #include "content/public/renderer/document_state.h" #include "content/public/renderer/navigation_state.h" #include "content/public/renderer/render_frame_observer.h" #include "content/renderer/accessibility/renderer_accessibility.h" #include "content/renderer/browser_plugin/browser_plugin.h" #include "content/renderer/browser_plugin/browser_plugin_manager.h" #include "content/renderer/child_frame_compositing_helper.h" #include "content/renderer/internal_document_state_data.h" #include "content/renderer/npapi/plugin_channel_host.h" #include "content/renderer/render_thread_impl.h" #include "content/renderer/render_view_impl.h" #include "content/renderer/render_widget_fullscreen_pepper.h" #include "content/renderer/renderer_webapplicationcachehost_impl.h" #include "content/renderer/shared_worker_repository.h" #include "content/renderer/websharedworker_proxy.h" #include "net/base/net_errors.h" #include "net/http/http_util.h" #include "third_party/WebKit/public/platform/WebStorageQuotaCallbacks.h" #include "third_party/WebKit/public/platform/WebString.h" #include "third_party/WebKit/public/platform/WebURL.h" #include "third_party/WebKit/public/platform/WebURLError.h" #include "third_party/WebKit/public/platform/WebURLResponse.h" #include "third_party/WebKit/public/platform/WebVector.h" #include "third_party/WebKit/public/web/WebDocument.h" #include "third_party/WebKit/public/web/WebFrame.h" #include "third_party/WebKit/public/web/WebNavigationPolicy.h" #include "third_party/WebKit/public/web/WebPlugin.h" #include "third_party/WebKit/public/web/WebPluginParams.h" #include "third_party/WebKit/public/web/WebSearchableFormData.h" #include "third_party/WebKit/public/web/WebSecurityOrigin.h" #include "third_party/WebKit/public/web/WebUserGestureIndicator.h" #include "third_party/WebKit/public/web/WebView.h" #include "webkit/child/weburlresponse_extradata_impl.h" #if defined(ENABLE_PLUGINS) #include "content/renderer/npapi/webplugin_impl.h" #include "content/renderer/pepper/pepper_browser_connection.h" #include "content/renderer/pepper/pepper_plugin_instance_impl.h" #include "content/renderer/pepper/pepper_webplugin_impl.h" #include "content/renderer/pepper/plugin_module.h" #endif #if defined(ENABLE_WEBRTC) #include "content/renderer/media/rtc_peer_connection_handler.h" #endif using blink::WebDataSource; using blink::WebDocument; using blink::WebFrame; using blink::WebNavigationPolicy; using blink::WebPluginParams; using blink::WebReferrerPolicy; using blink::WebSearchableFormData; using blink::WebSecurityOrigin; using blink::WebServiceWorkerProvider; using blink::WebStorageQuotaCallbacks; using blink::WebString; using blink::WebURL; using blink::WebURLError; using blink::WebURLRequest; using blink::WebURLResponse; using blink::WebUserGestureIndicator; using blink::WebVector; using blink::WebView; using base::Time; using base::TimeDelta; using webkit_glue::WebURLResponseExtraDataImpl; namespace content { namespace { typedef std::map FrameMap; base::LazyInstance g_frame_map = LAZY_INSTANCE_INITIALIZER; } // namespace static RenderFrameImpl* (*g_create_render_frame_impl)(RenderViewImpl*, int32) = NULL; // static RenderFrameImpl* RenderFrameImpl::Create(RenderViewImpl* render_view, int32 routing_id) { DCHECK(routing_id != MSG_ROUTING_NONE); if (g_create_render_frame_impl) return g_create_render_frame_impl(render_view, routing_id); else return new RenderFrameImpl(render_view, routing_id); } // static RenderFrame* RenderFrame::FromWebFrame(blink::WebFrame* web_frame) { return RenderFrameImpl::FromWebFrame(web_frame); } RenderFrameImpl* RenderFrameImpl::FromWebFrame(blink::WebFrame* web_frame) { FrameMap::iterator iter = g_frame_map.Get().find(web_frame); if (iter != g_frame_map.Get().end()) return iter->second; return NULL; } // static void RenderFrameImpl::InstallCreateHook( RenderFrameImpl* (*create_render_frame_impl)(RenderViewImpl*, int32)) { CHECK(!g_create_render_frame_impl); g_create_render_frame_impl = create_render_frame_impl; } // RenderFrameImpl ---------------------------------------------------------- RenderFrameImpl::RenderFrameImpl(RenderViewImpl* render_view, int routing_id) : frame_(NULL), render_view_(render_view->AsWeakPtr()), routing_id_(routing_id), is_swapped_out_(false), is_detaching_(false), cookie_jar_(this) { RenderThread::Get()->AddRoute(routing_id_, this); } RenderFrameImpl::~RenderFrameImpl() { FOR_EACH_OBSERVER(RenderFrameObserver, observers_, RenderFrameGone()); FOR_EACH_OBSERVER(RenderFrameObserver, observers_, OnDestruct()); RenderThread::Get()->RemoveRoute(routing_id_); } // TODO(nasko): Overload the delete operator to overwrite the freed // RenderFrameImpl object and help detect potential use-after-free bug. // See https://crbug.com/245126#c34. void RenderFrameImpl::operator delete(void* ptr) { memset(ptr, 0xAF, sizeof(RenderFrameImpl)); } void RenderFrameImpl::SetWebFrame(blink::WebFrame* web_frame) { DCHECK(!frame_); std::pair result = g_frame_map.Get().insert( std::make_pair(web_frame, this)); CHECK(result.second) << "Inserting a duplicate item."; frame_ = web_frame; #if defined(ENABLE_PLUGINS) new PepperBrowserConnection(this); #endif new SharedWorkerRepository(this); // We delay calling this until we have the WebFrame so that any observer or // embedder can call GetWebFrame on any RenderFrame. GetContentClient()->renderer()->RenderFrameCreated(this); } RenderWidget* RenderFrameImpl::GetRenderWidget() { return render_view_.get(); } #if defined(ENABLE_PLUGINS) void RenderFrameImpl::PepperPluginCreated(RendererPpapiHost* host) { FOR_EACH_OBSERVER(RenderFrameObserver, observers_, DidCreatePepperPlugin(host)); } void RenderFrameImpl::PepperDidChangeCursor( PepperPluginInstanceImpl* instance, const blink::WebCursorInfo& cursor) { // Update the cursor appearance immediately if the requesting plugin is the // one which receives the last mouse event. Otherwise, the new cursor won't be // picked up until the plugin gets the next input event. That is bad if, e.g., // the plugin would like to set an invisible cursor when there isn't any user // input for a while. if (instance == render_view_->pepper_last_mouse_event_target()) GetRenderWidget()->didChangeCursor(cursor); } void RenderFrameImpl::PepperDidReceiveMouseEvent( PepperPluginInstanceImpl* instance) { render_view_->set_pepper_last_mouse_event_target(instance); } void RenderFrameImpl::PepperTextInputTypeChanged( PepperPluginInstanceImpl* instance) { if (instance != render_view_->focused_pepper_plugin()) return; GetRenderWidget()->UpdateTextInputType(); if (render_view_->renderer_accessibility()) { render_view_->renderer_accessibility()->FocusedNodeChanged( blink::WebNode()); } } void RenderFrameImpl::PepperCaretPositionChanged( PepperPluginInstanceImpl* instance) { if (instance != render_view_->focused_pepper_plugin()) return; GetRenderWidget()->UpdateSelectionBounds(); } void RenderFrameImpl::PepperCancelComposition( PepperPluginInstanceImpl* instance) { if (instance != render_view_->focused_pepper_plugin()) return; Send(new ViewHostMsg_ImeCancelComposition(render_view_->GetRoutingID()));; #if defined(OS_MACOSX) || defined(OS_WIN) || defined(USE_AURA) GetRenderWidget()->UpdateCompositionInfo(true); #endif } void RenderFrameImpl::PepperSelectionChanged( PepperPluginInstanceImpl* instance) { if (instance != render_view_->focused_pepper_plugin()) return; render_view_->SyncSelectionIfRequired(); } RenderWidgetFullscreenPepper* RenderFrameImpl::CreatePepperFullscreenContainer( PepperPluginInstanceImpl* plugin) { GURL active_url; if (render_view_->webview() && render_view_->webview()->mainFrame()) active_url = GURL(render_view_->webview()->mainFrame()->document().url()); RenderWidgetFullscreenPepper* widget = RenderWidgetFullscreenPepper::Create( GetRenderWidget()->routing_id(), plugin, active_url, GetRenderWidget()->screenInfo()); widget->show(blink::WebNavigationPolicyIgnore); return widget; } bool RenderFrameImpl::IsPepperAcceptingCompositionEvents() const { if (!render_view_->focused_pepper_plugin()) return false; return render_view_->focused_pepper_plugin()-> IsPluginAcceptingCompositionEvents(); } void RenderFrameImpl::PluginCrashed(const base::FilePath& plugin_path, base::ProcessId plugin_pid) { // TODO(jam): dispatch this IPC in RenderFrameHost and switch to use // routing_id_ as a result. Send(new FrameHostMsg_PluginCrashed(routing_id_, plugin_path, plugin_pid)); } void RenderFrameImpl::SimulateImeSetComposition( const base::string16& text, const std::vector& underlines, int selection_start, int selection_end) { render_view_->OnImeSetComposition( text, underlines, selection_start, selection_end); } void RenderFrameImpl::SimulateImeConfirmComposition( const base::string16& text, const gfx::Range& replacement_range) { render_view_->OnImeConfirmComposition(text, replacement_range, false); } void RenderFrameImpl::OnImeSetComposition( const base::string16& text, const std::vector& underlines, int selection_start, int selection_end) { // When a PPAPI plugin has focus, we bypass WebKit. if (!IsPepperAcceptingCompositionEvents()) { pepper_composition_text_ = text; } else { // TODO(kinaba) currently all composition events are sent directly to // plugins. Use DOM event mechanism after WebKit is made aware about // plugins that support composition. // The code below mimics the behavior of WebCore::Editor::setComposition. // Empty -> nonempty: composition started. if (pepper_composition_text_.empty() && !text.empty()) { render_view_->focused_pepper_plugin()->HandleCompositionStart( base::string16()); } // Nonempty -> empty: composition canceled. if (!pepper_composition_text_.empty() && text.empty()) { render_view_->focused_pepper_plugin()->HandleCompositionEnd( base::string16()); } pepper_composition_text_ = text; // Nonempty: composition is ongoing. if (!pepper_composition_text_.empty()) { render_view_->focused_pepper_plugin()->HandleCompositionUpdate( pepper_composition_text_, underlines, selection_start, selection_end); } } } void RenderFrameImpl::OnImeConfirmComposition( const base::string16& text, const gfx::Range& replacement_range, bool keep_selection) { // When a PPAPI plugin has focus, we bypass WebKit. // Here, text.empty() has a special meaning. It means to commit the last // update of composition text (see // RenderWidgetHost::ImeConfirmComposition()). const base::string16& last_text = text.empty() ? pepper_composition_text_ : text; // last_text is empty only when both text and pepper_composition_text_ is. // Ignore it. if (last_text.empty()) return; if (!IsPepperAcceptingCompositionEvents()) { base::i18n::UTF16CharIterator iterator(&last_text); int32 i = 0; while (iterator.Advance()) { blink::WebKeyboardEvent char_event; char_event.type = blink::WebInputEvent::Char; char_event.timeStampSeconds = base::Time::Now().ToDoubleT(); char_event.modifiers = 0; char_event.windowsKeyCode = last_text[i]; char_event.nativeKeyCode = last_text[i]; const int32 char_start = i; for (; i < iterator.array_pos(); ++i) { char_event.text[i - char_start] = last_text[i]; char_event.unmodifiedText[i - char_start] = last_text[i]; } if (GetRenderWidget()->webwidget()) GetRenderWidget()->webwidget()->handleInputEvent(char_event); } } else { // Mimics the order of events sent by WebKit. // See WebCore::Editor::setComposition() for the corresponding code. render_view_->focused_pepper_plugin()->HandleCompositionEnd(last_text); render_view_->focused_pepper_plugin()->HandleTextInput(last_text); } pepper_composition_text_.clear(); } #endif // ENABLE_PLUGINS bool RenderFrameImpl::Send(IPC::Message* message) { if (is_detaching_ || ((is_swapped_out_ || render_view_->is_swapped_out()) && !SwappedOutMessages::CanSendWhileSwappedOut(message))) { delete message; return false; } return RenderThread::Get()->Send(message); } bool RenderFrameImpl::OnMessageReceived(const IPC::Message& msg) { ObserverListBase::Iterator it(observers_); RenderFrameObserver* observer; while ((observer = it.GetNext()) != NULL) { if (observer->OnMessageReceived(msg)) return true; } bool handled = true; bool msg_is_ok = true; IPC_BEGIN_MESSAGE_MAP_EX(RenderFrameImpl, msg, msg_is_ok) IPC_MESSAGE_HANDLER(FrameMsg_SwapOut, OnSwapOut) IPC_MESSAGE_HANDLER(FrameMsg_BuffersSwapped, OnBuffersSwapped) IPC_MESSAGE_HANDLER_GENERIC(FrameMsg_CompositorFrameSwapped, OnCompositorFrameSwapped(msg)) IPC_END_MESSAGE_MAP_EX() if (!msg_is_ok) { // The message had a handler, but its deserialization failed. // Kill the renderer to avoid potential spoofing attacks. CHECK(false) << "Unable to deserialize message in RenderFrameImpl."; } return handled; } void RenderFrameImpl::OnSwapOut() { // Only run unload if we're not swapped out yet, but send the ack either way. if (!is_swapped_out_) { // Swap this RenderView out so the tab can navigate to a page rendered by a // different process. This involves running the unload handler and clearing // the page. Once WasSwappedOut is called, we also allow this process to // exit if there are no other active RenderViews in it. // Send an UpdateState message before we get swapped out. render_view_->SyncNavigationState(); // Synchronously run the unload handler before sending the ACK. // TODO(creis): Add a WebFrame::dispatchUnloadEvent and call it here. // Swap out and stop sending any IPC messages that are not ACKs. is_swapped_out_ = true; // Now that we're swapped out and filtering IPC messages, stop loading to // ensure that no other in-progress navigation continues. We do this here // to avoid sending a DidStopLoading message to the browser process. // TODO(creis): Should we be stopping all frames here and using // StopAltErrorPageFetcher with RenderView::OnStop, or just stopping this // frame? frame_->stopLoading(); // Replace the page with a blank dummy URL. The unload handler will not be // run a second time, thanks to a check in FrameLoader::stopLoading. // TODO(creis): Need to add a better way to do this that avoids running the // beforeunload handler. For now, we just run it a second time silently. render_view_->NavigateToSwappedOutURL(frame_); render_view_->RegisterSwappedOutChildFrame(this); } Send(new FrameHostMsg_SwapOut_ACK(routing_id_)); } void RenderFrameImpl::OnBuffersSwapped( const FrameMsg_BuffersSwapped_Params& params) { if (!compositing_helper_.get()) { compositing_helper_ = ChildFrameCompositingHelper::CreateCompositingHelperForRenderFrame( frame_, this, routing_id_); compositing_helper_->EnableCompositing(true); } compositing_helper_->OnBuffersSwapped( params.size, params.mailbox_name, params.gpu_route_id, params.gpu_host_id, render_view_->GetWebView()->deviceScaleFactor()); } void RenderFrameImpl::OnCompositorFrameSwapped(const IPC::Message& message) { FrameMsg_CompositorFrameSwapped::Param param; if (!FrameMsg_CompositorFrameSwapped::Read(&message, ¶m)) return; scoped_ptr frame(new cc::CompositorFrame); param.a.frame.AssignTo(frame.get()); if (!compositing_helper_.get()) { compositing_helper_ = ChildFrameCompositingHelper::CreateCompositingHelperForRenderFrame( frame_, this, routing_id_); compositing_helper_->EnableCompositing(true); } compositing_helper_->OnCompositorFrameSwapped(frame.Pass(), param.a.producing_route_id, param.a.output_surface_id, param.a.producing_host_id); } void RenderFrameImpl::DidCommitCompositorFrame() { if (compositing_helper_) compositing_helper_->DidCommitCompositorFrame(); } RenderView* RenderFrameImpl::GetRenderView() { return render_view_.get(); } int RenderFrameImpl::GetRoutingID() { return routing_id_; } blink::WebFrame* RenderFrameImpl::GetWebFrame() { DCHECK(frame_); return frame_; } WebPreferences& RenderFrameImpl::GetWebkitPreferences() { return render_view_->GetWebkitPreferences(); } int RenderFrameImpl::ShowContextMenu(ContextMenuClient* client, const ContextMenuParams& params) { return render_view_->ShowContextMenu(client, params); } void RenderFrameImpl::CancelContextMenu(int request_id) { return render_view_->CancelContextMenu(request_id); } blink::WebPlugin* RenderFrameImpl::CreatePlugin( blink::WebFrame* frame, const WebPluginInfo& info, const blink::WebPluginParams& params) { #if defined(ENABLE_PLUGINS) bool pepper_plugin_was_registered = false; scoped_refptr pepper_module(PluginModule::Create( this, info, &pepper_plugin_was_registered)); if (pepper_plugin_was_registered) { if (pepper_module.get()) { return new PepperWebPluginImpl(pepper_module.get(), params, this); } } #if defined(OS_CHROMEOS) LOG(WARNING) << "Pepper module/plugin creation failed."; return NULL; #else // TODO(jam): change to take RenderFrame. return new WebPluginImpl(frame, params, info.path, render_view_, this); #endif #else return NULL; #endif } void RenderFrameImpl::LoadURLExternally( blink::WebFrame* frame, const blink::WebURLRequest& request, blink::WebNavigationPolicy policy) { loadURLExternally(frame, request, policy); } // blink::WebFrameClient implementation ---------------------------------------- blink::WebPlugin* RenderFrameImpl::createPlugin( blink::WebFrame* frame, const blink::WebPluginParams& params) { blink::WebPlugin* plugin = NULL; if (GetContentClient()->renderer()->OverrideCreatePlugin( this, frame, params, &plugin)) { return plugin; } if (UTF16ToASCII(params.mimeType) == kBrowserPluginMimeType) { return render_view_->GetBrowserPluginManager()->CreateBrowserPlugin( render_view_.get(), frame); } #if defined(ENABLE_PLUGINS) WebPluginInfo info; std::string mime_type; bool found = false; Send(new FrameHostMsg_GetPluginInfo( routing_id_, params.url, frame->top()->document().url(), params.mimeType.utf8(), &found, &info, &mime_type)); if (!found) return NULL; WebPluginParams params_to_use = params; params_to_use.mimeType = WebString::fromUTF8(mime_type); return CreatePlugin(frame, info, params_to_use); #else return NULL; #endif // defined(ENABLE_PLUGINS) } blink::WebMediaPlayer* RenderFrameImpl::createMediaPlayer( blink::WebFrame* frame, const blink::WebURL& url, blink::WebMediaPlayerClient* client) { // TODO(nasko): Moving the implementation here involves moving a few media // related client objects here or referencing them in the RenderView. Needs // more work to understand where the proper place for those objects is. return render_view_->CreateMediaPlayer(this, frame, url, client); } blink::WebApplicationCacheHost* RenderFrameImpl::createApplicationCacheHost( blink::WebFrame* frame, blink::WebApplicationCacheHostClient* client) { if (!frame || !frame->view()) return NULL; return new RendererWebApplicationCacheHostImpl( RenderViewImpl::FromWebView(frame->view()), client, RenderThreadImpl::current()->appcache_dispatcher()->backend_proxy()); } blink::WebWorkerPermissionClientProxy* RenderFrameImpl::createWorkerPermissionClientProxy(WebFrame* frame) { if (!frame || !frame->view()) return NULL; return GetContentClient()->renderer()->CreateWorkerPermissionClientProxy( this, frame); } blink::WebCookieJar* RenderFrameImpl::cookieJar(blink::WebFrame* frame) { return &cookie_jar_; } blink::WebServiceWorkerProvider* RenderFrameImpl::createServiceWorkerProvider( blink::WebFrame* frame, blink::WebServiceWorkerProviderClient* client) { return new WebServiceWorkerProviderImpl( ChildThread::current()->thread_safe_sender(), make_scoped_ptr(client)); } void RenderFrameImpl::didAccessInitialDocument(blink::WebFrame* frame) { render_view_->didAccessInitialDocument(frame); } blink::WebFrame* RenderFrameImpl::createChildFrame( blink::WebFrame* parent, const blink::WebString& name) { long long child_frame_identifier = WebFrame::generateEmbedderIdentifier(); // Synchronously notify the browser of a child frame creation to get the // routing_id for the RenderFrame. int routing_id = MSG_ROUTING_NONE; Send(new FrameHostMsg_CreateChildFrame(routing_id_, parent->identifier(), child_frame_identifier, base::UTF16ToUTF8(name), &routing_id)); // Allocation of routing id failed, so we can't create a child frame. This can // happen if this RenderFrameImpl's IPCs are being filtered when in swapped // out state. if (routing_id == MSG_ROUTING_NONE) { base::debug::Alias(parent); base::debug::Alias(&routing_id_); bool render_view_is_swapped_out = GetRenderWidget()->is_swapped_out(); base::debug::Alias(&render_view_is_swapped_out); bool render_view_is_closing = GetRenderWidget()->closing(); base::debug::Alias(&render_view_is_closing); base::debug::Alias(&is_swapped_out_); base::debug::DumpWithoutCrashing(); return NULL; } RenderFrameImpl* child_render_frame = RenderFrameImpl::Create( render_view_.get(), routing_id); // TODO(nasko): Over-conservative check for debugging. CHECK(child_render_frame); blink::WebFrame* web_frame = WebFrame::create(child_render_frame, child_frame_identifier); // TODO(nasko): Over-conservative check for debugging. CHECK(web_frame); child_render_frame->SetWebFrame(web_frame); return web_frame; } void RenderFrameImpl::didDisownOpener(blink::WebFrame* frame) { render_view_->didDisownOpener(frame); } void RenderFrameImpl::frameDetached(blink::WebFrame* frame) { // NOTE: This function is called on the frame that is being detached and not // the parent frame. This is different from createChildFrame() which is // called on the parent frame. CHECK(!is_detaching_); // TODO(nasko): Remove all debug::Alias lines after diagnosing failures. base::debug::Alias(frame); bool is_subframe = !!frame->parent(); base::debug::Alias(&is_subframe); int64 parent_frame_id = -1; base::debug::Alias(&parent_frame_id); if (is_subframe) parent_frame_id = frame->parent()->identifier(); Send(new FrameHostMsg_Detach(routing_id_, parent_frame_id, frame->identifier())); render_view_->UnregisterSwappedOutChildFrame(this); // The |is_detaching_| flag disables Send(). FrameHostMsg_Detach must be // sent before setting |is_detaching_| to true. In contrast, Observers // should only be notified afterwards so they cannot call back into here and // have IPCs fired off. is_detaching_ = true; // Call back to RenderViewImpl for observers to be notified. // TODO(nasko): Remove once we have RenderFrameObserver. render_view_->frameDetached(frame); // We need to clean up subframes by removing them from the map and deleting // the RenderFrameImpl. In contrast, the main frame is owned by its // containing RenderViewHost (so that they have the same lifetime), so only // removal from the map is needed and no deletion. FrameMap::iterator it = g_frame_map.Get().find(frame); CHECK(it != g_frame_map.Get().end()); CHECK_EQ(it->second, this); g_frame_map.Get().erase(it); // |frame| is invalid after here. frame->close(); if (is_subframe) { delete this; // Object is invalid after this point. } } void RenderFrameImpl::willClose(blink::WebFrame* frame) { // Call back to RenderViewImpl for observers to be notified. // TODO(nasko): Remove once we have RenderFrameObserver. render_view_->willClose(frame); } void RenderFrameImpl::didChangeName(blink::WebFrame* frame, const blink::WebString& name) { if (!render_view_->renderer_preferences_.report_frame_name_changes) return; render_view_->Send( new ViewHostMsg_UpdateFrameName(render_view_->GetRoutingID(), frame->identifier(), !frame->parent(), base::UTF16ToUTF8(name))); } void RenderFrameImpl::didMatchCSS( blink::WebFrame* frame, const blink::WebVector& newly_matching_selectors, const blink::WebVector& stopped_matching_selectors) { render_view_->didMatchCSS( frame, newly_matching_selectors, stopped_matching_selectors); } void RenderFrameImpl::loadURLExternally(blink::WebFrame* frame, const blink::WebURLRequest& request, blink::WebNavigationPolicy policy) { loadURLExternally(frame, request, policy, WebString()); } void RenderFrameImpl::loadURLExternally( blink::WebFrame* frame, const blink::WebURLRequest& request, blink::WebNavigationPolicy policy, const blink::WebString& suggested_name) { Referrer referrer(RenderViewImpl::GetReferrerFromRequest(frame, request)); if (policy == blink::WebNavigationPolicyDownload) { render_view_->Send(new ViewHostMsg_DownloadUrl(render_view_->GetRoutingID(), request.url(), referrer, suggested_name)); } else { render_view_->OpenURL(frame, request.url(), referrer, policy); } } blink::WebNavigationPolicy RenderFrameImpl::decidePolicyForNavigation( blink::WebFrame* frame, blink::WebDataSource::ExtraData* extra_data, const blink::WebURLRequest& request, blink::WebNavigationType type, blink::WebNavigationPolicy default_policy, bool is_redirect) { return render_view_->DecidePolicyForNavigation( this, frame, extra_data, request, type, default_policy, is_redirect); } blink::WebNavigationPolicy RenderFrameImpl::decidePolicyForNavigation( blink::WebFrame* frame, const blink::WebURLRequest& request, blink::WebNavigationType type, blink::WebNavigationPolicy default_policy, bool is_redirect) { return decidePolicyForNavigation(frame, frame->provisionalDataSource()->extraData(), request, type, default_policy, is_redirect); } void RenderFrameImpl::willSendSubmitEvent(blink::WebFrame* frame, const blink::WebFormElement& form) { // Call back to RenderViewImpl for observers to be notified. // TODO(nasko): Remove once we have RenderFrameObserver. render_view_->willSendSubmitEvent(frame, form); } void RenderFrameImpl::willSubmitForm(blink::WebFrame* frame, const blink::WebFormElement& form) { DocumentState* document_state = DocumentState::FromDataSource(frame->provisionalDataSource()); NavigationState* navigation_state = document_state->navigation_state(); InternalDocumentStateData* internal_data = InternalDocumentStateData::FromDocumentState(document_state); if (PageTransitionCoreTypeIs(navigation_state->transition_type(), PAGE_TRANSITION_LINK)) { navigation_state->set_transition_type(PAGE_TRANSITION_FORM_SUBMIT); } // Save these to be processed when the ensuing navigation is committed. WebSearchableFormData web_searchable_form_data(form); internal_data->set_searchable_form_url(web_searchable_form_data.url()); internal_data->set_searchable_form_encoding( web_searchable_form_data.encoding().utf8()); // Call back to RenderViewImpl for observers to be notified. // TODO(nasko): Remove once we have RenderFrameObserver. render_view_->willSubmitForm(frame, form); } void RenderFrameImpl::didCreateDataSource(blink::WebFrame* frame, blink::WebDataSource* datasource) { // TODO(nasko): Move implementation here. Needed state: // * pending_navigation_params_ // * webview // Needed methods: // * PopulateDocumentStateFromPending // * CreateNavigationStateFromPending render_view_->didCreateDataSource(frame, datasource); } void RenderFrameImpl::didStartProvisionalLoad(blink::WebFrame* frame) { WebDataSource* ds = frame->provisionalDataSource(); // In fast/loader/stop-provisional-loads.html, we abort the load before this // callback is invoked. if (!ds) return; DocumentState* document_state = DocumentState::FromDataSource(ds); // We should only navigate to swappedout:// when is_swapped_out_ is true. CHECK((ds->request().url() != GURL(kSwappedOutURL)) || is_swapped_out_ || render_view_->is_swapped_out()) << "Heard swappedout:// when not swapped out."; // Update the request time if WebKit has better knowledge of it. if (document_state->request_time().is_null()) { double event_time = ds->triggeringEventTime(); if (event_time != 0.0) document_state->set_request_time(Time::FromDoubleT(event_time)); } // Start time is only set after request time. document_state->set_start_load_time(Time::Now()); bool is_top_most = !frame->parent(); if (is_top_most) { render_view_->set_navigation_gesture( WebUserGestureIndicator::isProcessingUserGesture() ? NavigationGestureUser : NavigationGestureAuto); } else if (ds->replacesCurrentHistoryItem()) { // Subframe navigations that don't add session history items must be // marked with AUTO_SUBFRAME. See also didFailProvisionalLoad for how we // handle loading of error pages. document_state->navigation_state()->set_transition_type( PAGE_TRANSITION_AUTO_SUBFRAME); } FOR_EACH_OBSERVER( RenderViewObserver, render_view_->observers(), DidStartProvisionalLoad(frame)); Send(new FrameHostMsg_DidStartProvisionalLoadForFrame( routing_id_, frame->identifier(), frame->parent() ? frame->parent()->identifier() : -1, is_top_most, ds->request().url())); } void RenderFrameImpl::didReceiveServerRedirectForProvisionalLoad( blink::WebFrame* frame) { if (frame->parent()) return; // Received a redirect on the main frame. WebDataSource* data_source = frame->provisionalDataSource(); if (!data_source) { // Should only be invoked when we have a data source. NOTREACHED(); return; } std::vector redirects; RenderViewImpl::GetRedirectChain(data_source, &redirects); if (redirects.size() >= 2) { Send(new FrameHostMsg_DidRedirectProvisionalLoad( routing_id_, render_view_->page_id_, redirects[redirects.size() - 2], redirects.back())); } } void RenderFrameImpl::didFailProvisionalLoad( blink::WebFrame* frame, const blink::WebURLError& error) { WebDataSource* ds = frame->provisionalDataSource(); DCHECK(ds); const WebURLRequest& failed_request = ds->request(); // Call out to RenderViewImpl, so observers are notified. render_view_->didFailProvisionalLoad(frame, error); bool show_repost_interstitial = (error.reason == net::ERR_CACHE_MISS && EqualsASCII(failed_request.httpMethod(), "POST")); FrameHostMsg_DidFailProvisionalLoadWithError_Params params; params.frame_id = frame->identifier(); params.frame_unique_name = frame->uniqueName(); params.is_main_frame = !frame->parent(); params.error_code = error.reason; GetContentClient()->renderer()->GetNavigationErrorStrings( render_view_.get(), frame, failed_request, error, NULL, ¶ms.error_description); params.url = error.unreachableURL; params.showing_repost_interstitial = show_repost_interstitial; Send(new FrameHostMsg_DidFailProvisionalLoadWithError( routing_id_, params)); // Don't display an error page if this is simply a cancelled load. Aside // from being dumb, WebCore doesn't expect it and it will cause a crash. if (error.reason == net::ERR_ABORTED) return; // Don't display "client blocked" error page if browser has asked us not to. if (error.reason == net::ERR_BLOCKED_BY_CLIENT && render_view_->renderer_preferences_.disable_client_blocked_error_page) { return; } // Allow the embedder to suppress an error page. if (GetContentClient()->renderer()->ShouldSuppressErrorPage(this, error.unreachableURL)) { return; } if (RenderThreadImpl::current() && RenderThreadImpl::current()->layout_test_mode()) { return; } // Make sure we never show errors in view source mode. frame->enableViewSourceMode(false); DocumentState* document_state = DocumentState::FromDataSource(ds); NavigationState* navigation_state = document_state->navigation_state(); // If this is a failed back/forward/reload navigation, then we need to do a // 'replace' load. This is necessary to avoid messing up session history. // Otherwise, we do a normal load, which simulates a 'go' navigation as far // as session history is concerned. // // AUTO_SUBFRAME loads should always be treated as loads that do not advance // the page id. // // TODO(davidben): This should also take the failed navigation's replacement // state into account, if a location.replace() failed. bool replace = navigation_state->pending_page_id() != -1 || PageTransitionCoreTypeIs(navigation_state->transition_type(), PAGE_TRANSITION_AUTO_SUBFRAME); // If we failed on a browser initiated request, then make sure that our error // page load is regarded as the same browser initiated request. if (!navigation_state->is_content_initiated()) { render_view_->pending_navigation_params_.reset(new ViewMsg_Navigate_Params); render_view_->pending_navigation_params_->page_id = navigation_state->pending_page_id(); render_view_->pending_navigation_params_->pending_history_list_offset = navigation_state->pending_history_list_offset(); render_view_->pending_navigation_params_->should_clear_history_list = navigation_state->history_list_was_cleared(); render_view_->pending_navigation_params_->transition = navigation_state->transition_type(); render_view_->pending_navigation_params_->request_time = document_state->request_time(); render_view_->pending_navigation_params_->should_replace_current_entry = replace; } // Load an error page. render_view_->LoadNavigationErrorPage( frame, failed_request, error, replace); } void RenderFrameImpl::didCommitProvisionalLoad(blink::WebFrame* frame, bool is_new_navigation) { // TODO(nasko): Move implementation here. Needed state: // * page_id_ // * next_page_id_ // * history_list_offset_ // * history_list_length_ // * history_page_ids_ // Needed methods // * webview // * UpdateSessionHistory // * GetLoadingUrl render_view_->didCommitProvisionalLoad(frame, is_new_navigation); FOR_EACH_OBSERVER(RenderFrameObserver, observers_, DidCommitProvisionalLoad(is_new_navigation)); } void RenderFrameImpl::didClearWindowObject(blink::WebFrame* frame, int world_id) { // TODO(nasko): Move implementation here. Needed state: // * enabled_bindings_ // * dom_automation_controller_ // * stats_collection_controller_ render_view_->didClearWindowObject(frame, world_id); } void RenderFrameImpl::didCreateDocumentElement(blink::WebFrame* frame) { // Notify the browser about non-blank documents loading in the top frame. GURL url = frame->document().url(); if (url.is_valid() && url.spec() != kAboutBlankURL) { // TODO(nasko): Check if webview()->mainFrame() is the same as the // frame->tree()->top(). if (frame == render_view_->webview()->mainFrame()) { render_view_->Send(new ViewHostMsg_DocumentAvailableInMainFrame( render_view_->GetRoutingID())); } } // Call back to RenderViewImpl for observers to be notified. // TODO(nasko): Remove once we have RenderFrameObserver. render_view_->didCreateDocumentElement(frame); } void RenderFrameImpl::didReceiveTitle(blink::WebFrame* frame, const blink::WebString& title, blink::WebTextDirection direction) { // TODO(nasko): Investigate wheather implementation should move here. render_view_->didReceiveTitle(frame, title, direction); } void RenderFrameImpl::didChangeIcon(blink::WebFrame* frame, blink::WebIconURL::Type icon_type) { // TODO(nasko): Investigate wheather implementation should move here. render_view_->didChangeIcon(frame, icon_type); } void RenderFrameImpl::didFinishDocumentLoad(blink::WebFrame* frame) { // TODO(nasko): Move implementation here. No state needed, just observers // notification in before updating encoding. render_view_->didFinishDocumentLoad(frame); } void RenderFrameImpl::didHandleOnloadEvents(blink::WebFrame* frame) { // TODO(nasko): Move implementation here. Needed state: // * page_id_ render_view_->didHandleOnloadEvents(frame); } void RenderFrameImpl::didFailLoad(blink::WebFrame* frame, const blink::WebURLError& error) { // TODO(nasko): Move implementation here. No state needed. render_view_->didFailLoad(frame, error); } void RenderFrameImpl::didFinishLoad(blink::WebFrame* frame) { // TODO(nasko): Move implementation here. No state needed, just observers // notification before sending message to the browser process. render_view_->didFinishLoad(frame); } void RenderFrameImpl::didNavigateWithinPage(blink::WebFrame* frame, bool is_new_navigation) { // TODO(nasko): Move implementation here. No state needed, just observers // notification before sending message to the browser process. render_view_->didNavigateWithinPage(frame, is_new_navigation); } void RenderFrameImpl::didUpdateCurrentHistoryItem(blink::WebFrame* frame) { // TODO(nasko): Move implementation here. Needed methods: // * StartNavStateSyncTimerIfNecessary render_view_->didUpdateCurrentHistoryItem(frame); } void RenderFrameImpl::willRequestAfterPreconnect( blink::WebFrame* frame, blink::WebURLRequest& request) { blink::WebReferrerPolicy referrer_policy = frame->document().referrerPolicy(); // FIXME(kohei): This will never be set. WebString custom_user_agent; DCHECK(!request.extraData()); bool was_after_preconnect_request = true; // The args after |was_after_preconnect_request| are not used, and set to // correct values at |willSendRequest|. request.setExtraData(new webkit_glue::WebURLRequestExtraDataImpl( referrer_policy, custom_user_agent, was_after_preconnect_request)); } void RenderFrameImpl::willSendRequest( blink::WebFrame* frame, unsigned identifier, blink::WebURLRequest& request, const blink::WebURLResponse& redirect_response) { // The request my be empty during tests. if (request.url().isEmpty()) return; WebFrame* top_frame = frame->top(); if (!top_frame) top_frame = frame; WebDataSource* provisional_data_source = top_frame->provisionalDataSource(); WebDataSource* top_data_source = top_frame->dataSource(); WebDataSource* data_source = provisional_data_source ? provisional_data_source : top_data_source; PageTransition transition_type = PAGE_TRANSITION_LINK; DocumentState* document_state = DocumentState::FromDataSource(data_source); DCHECK(document_state); InternalDocumentStateData* internal_data = InternalDocumentStateData::FromDocumentState(document_state); NavigationState* navigation_state = document_state->navigation_state(); transition_type = navigation_state->transition_type(); GURL request_url(request.url()); GURL new_url; if (GetContentClient()->renderer()->WillSendRequest( frame, transition_type, request_url, request.firstPartyForCookies(), &new_url)) { request.setURL(WebURL(new_url)); } if (internal_data->is_cache_policy_override_set()) request.setCachePolicy(internal_data->cache_policy_override()); blink::WebReferrerPolicy referrer_policy; if (internal_data->is_referrer_policy_set()) { referrer_policy = internal_data->referrer_policy(); } else { referrer_policy = frame->document().referrerPolicy(); } // The request's extra data may indicate that we should set a custom user // agent. This needs to be done here, after WebKit is through with setting the // user agent on its own. WebString custom_user_agent; bool was_after_preconnect_request = false; if (request.extraData()) { webkit_glue::WebURLRequestExtraDataImpl* old_extra_data = static_cast( request.extraData()); custom_user_agent = old_extra_data->custom_user_agent(); was_after_preconnect_request = old_extra_data->was_after_preconnect_request(); if (!custom_user_agent.isNull()) { if (custom_user_agent.isEmpty()) request.clearHTTPHeaderField("User-Agent"); else request.setHTTPHeaderField("User-Agent", custom_user_agent); } } // Attach |should_replace_current_entry| state to requests so that, should // this navigation later require a request transfer, all state is preserved // when it is re-created in the new process. bool should_replace_current_entry = false; if (navigation_state->is_content_initiated()) { should_replace_current_entry = data_source->replacesCurrentHistoryItem(); } else { // If the navigation is browser-initiated, the NavigationState contains the // correct value instead of the WebDataSource. // // TODO(davidben): Avoid this awkward duplication of state. See comment on // NavigationState::should_replace_current_entry(). should_replace_current_entry = navigation_state->should_replace_current_entry(); } request.setExtraData( new RequestExtraData(referrer_policy, render_view_->visibilityState(), custom_user_agent, was_after_preconnect_request, routing_id_, (frame == top_frame), frame->identifier(), GURL(frame->document().securityOrigin().toString()), frame->parent() == top_frame, frame->parent() ? frame->parent()->identifier() : -1, navigation_state->allow_download(), transition_type, should_replace_current_entry, navigation_state->transferred_request_child_id(), navigation_state->transferred_request_request_id())); DocumentState* top_document_state = DocumentState::FromDataSource(top_data_source); if (top_document_state) { // TODO(gavinp): separate out prefetching and prerender field trials // if the rel=prerender rel type is sticking around. if (request.targetType() == WebURLRequest::TargetIsPrefetch) top_document_state->set_was_prefetcher(true); if (was_after_preconnect_request) top_document_state->set_was_after_preconnect_request(true); } // This is an instance where we embed a copy of the routing id // into the data portion of the message. This can cause problems if we // don't register this id on the browser side, since the download manager // expects to find a RenderViewHost based off the id. request.setRequestorID(render_view_->GetRoutingID()); request.setHasUserGesture(WebUserGestureIndicator::isProcessingUserGesture()); if (!navigation_state->extra_headers().empty()) { for (net::HttpUtil::HeadersIterator i( navigation_state->extra_headers().begin(), navigation_state->extra_headers().end(), "\n"); i.GetNext(); ) { request.setHTTPHeaderField(WebString::fromUTF8(i.name()), WebString::fromUTF8(i.values())); } } if (!render_view_->renderer_preferences_.enable_referrers) request.clearHTTPHeaderField("Referer"); } void RenderFrameImpl::didReceiveResponse( blink::WebFrame* frame, unsigned identifier, const blink::WebURLResponse& response) { // Only do this for responses that correspond to a provisional data source // of the top-most frame. If we have a provisional data source, then we // can't have any sub-resources yet, so we know that this response must // correspond to a frame load. if (!frame->provisionalDataSource() || frame->parent()) return; // If we are in view source mode, then just let the user see the source of // the server's error page. if (frame->isViewSourceModeEnabled()) return; DocumentState* document_state = DocumentState::FromDataSource(frame->provisionalDataSource()); int http_status_code = response.httpStatusCode(); // Record page load flags. WebURLResponseExtraDataImpl* extra_data = RenderViewImpl::GetExtraDataFromResponse(response); if (extra_data) { document_state->set_was_fetched_via_spdy( extra_data->was_fetched_via_spdy()); document_state->set_was_npn_negotiated( extra_data->was_npn_negotiated()); document_state->set_npn_negotiated_protocol( extra_data->npn_negotiated_protocol()); document_state->set_was_alternate_protocol_available( extra_data->was_alternate_protocol_available()); document_state->set_connection_info( extra_data->connection_info()); document_state->set_was_fetched_via_proxy( extra_data->was_fetched_via_proxy()); } InternalDocumentStateData* internal_data = InternalDocumentStateData::FromDocumentState(document_state); internal_data->set_http_status_code(http_status_code); // Whether or not the http status code actually corresponds to an error is // only checked when the page is done loading, if |use_error_page| is // still true. internal_data->set_use_error_page(true); } void RenderFrameImpl::didFinishResourceLoad(blink::WebFrame* frame, unsigned identifier) { // TODO(nasko): Move implementation here. Needed state: // * devtools_agent_ // Needed methods: // * LoadNavigationErrorPage render_view_->didFinishResourceLoad(frame, identifier); } void RenderFrameImpl::didLoadResourceFromMemoryCache( blink::WebFrame* frame, const blink::WebURLRequest& request, const blink::WebURLResponse& response) { // The recipients of this message have no use for data: URLs: they don't // affect the page's insecure content list and are not in the disk cache. To // prevent large (1M+) data: URLs from crashing in the IPC system, we simply // filter them out here. GURL url(request.url()); if (url.SchemeIs("data")) return; // Let the browser know we loaded a resource from the memory cache. This // message is needed to display the correct SSL indicators. render_view_->Send(new ViewHostMsg_DidLoadResourceFromMemoryCache( render_view_->GetRoutingID(), url, response.securityInfo(), request.httpMethod().utf8(), response.mimeType().utf8(), ResourceType::FromTargetType(request.targetType()))); } void RenderFrameImpl::didDisplayInsecureContent(blink::WebFrame* frame) { render_view_->Send(new ViewHostMsg_DidDisplayInsecureContent( render_view_->GetRoutingID())); } void RenderFrameImpl::didRunInsecureContent( blink::WebFrame* frame, const blink::WebSecurityOrigin& origin, const blink::WebURL& target) { render_view_->Send(new ViewHostMsg_DidRunInsecureContent( render_view_->GetRoutingID(), origin.toString().utf8(), target)); } void RenderFrameImpl::didAbortLoading(blink::WebFrame* frame) { #if defined(ENABLE_PLUGINS) if (frame != render_view_->webview()->mainFrame()) return; PluginChannelHost::Broadcast( new PluginHostMsg_DidAbortLoading(render_view_->GetRoutingID())); #endif } void RenderFrameImpl::didExhaustMemoryAvailableForScript( blink::WebFrame* frame) { render_view_->Send(new ViewHostMsg_JSOutOfMemory( render_view_->GetRoutingID())); } void RenderFrameImpl::didCreateScriptContext(blink::WebFrame* frame, v8::Handle context, int extension_group, int world_id) { GetContentClient()->renderer()->DidCreateScriptContext( frame, context, extension_group, world_id); } void RenderFrameImpl::willReleaseScriptContext(blink::WebFrame* frame, v8::Handle context, int world_id) { GetContentClient()->renderer()->WillReleaseScriptContext( frame, context, world_id); } void RenderFrameImpl::didFirstVisuallyNonEmptyLayout(blink::WebFrame* frame) { render_view_->didFirstVisuallyNonEmptyLayout(frame); } void RenderFrameImpl::didChangeContentsSize(blink::WebFrame* frame, const blink::WebSize& size) { // TODO(nasko): Move implementation here. Needed state: // * cached_has_main_frame_horizontal_scrollbar_ // * cached_has_main_frame_vertical_scrollbar_ render_view_->didChangeContentsSize(frame, size); } void RenderFrameImpl::didChangeScrollOffset(blink::WebFrame* frame) { // TODO(nasko): Move implementation here. Needed methods: // * StartNavStateSyncTimerIfNecessary render_view_->didChangeScrollOffset(frame); } void RenderFrameImpl::willInsertBody(blink::WebFrame* frame) { if (!frame->parent()) { render_view_->Send(new ViewHostMsg_WillInsertBody( render_view_->GetRoutingID())); } } void RenderFrameImpl::reportFindInPageMatchCount(int request_id, int count, bool final_update) { int active_match_ordinal = -1; // -1 = don't update active match ordinal if (!count) active_match_ordinal = 0; render_view_->Send(new ViewHostMsg_Find_Reply( render_view_->GetRoutingID(), request_id, count, gfx::Rect(), active_match_ordinal, final_update)); } void RenderFrameImpl::reportFindInPageSelection( int request_id, int active_match_ordinal, const blink::WebRect& selection_rect) { render_view_->Send(new ViewHostMsg_Find_Reply( render_view_->GetRoutingID(), request_id, -1, selection_rect, active_match_ordinal, false)); } void RenderFrameImpl::requestStorageQuota( blink::WebFrame* frame, blink::WebStorageQuotaType type, unsigned long long requested_size, blink::WebStorageQuotaCallbacks* callbacks) { DCHECK(frame); WebSecurityOrigin origin = frame->document().securityOrigin(); if (origin.isUnique()) { // Unique origins cannot store persistent state. callbacks->didFail(blink::WebStorageQuotaErrorAbort); return; } ChildThread::current()->quota_dispatcher()->RequestStorageQuota( render_view_->GetRoutingID(), GURL(origin.toString()), static_cast(type), requested_size, QuotaDispatcher::CreateWebStorageQuotaCallbacksWrapper(callbacks)); } void RenderFrameImpl::willOpenSocketStream( blink::WebSocketStreamHandle* handle) { SocketStreamHandleData::AddToHandle(handle, routing_id_); } void RenderFrameImpl::willStartUsingPeerConnectionHandler( blink::WebFrame* frame, blink::WebRTCPeerConnectionHandler* handler) { #if defined(ENABLE_WEBRTC) static_cast(handler)->associateWithFrame(frame); #endif } bool RenderFrameImpl::willCheckAndDispatchMessageEvent( blink::WebFrame* sourceFrame, blink::WebFrame* targetFrame, blink::WebSecurityOrigin targetOrigin, blink::WebDOMMessageEvent event) { // TODO(nasko): Move implementation here. Needed state: // * is_swapped_out_ return render_view_->willCheckAndDispatchMessageEvent( sourceFrame, targetFrame, targetOrigin, event); } blink::WebString RenderFrameImpl::userAgentOverride( blink::WebFrame* frame, const blink::WebURL& url) { if (!render_view_->webview() || !render_view_->webview()->mainFrame() || render_view_->renderer_preferences_.user_agent_override.empty()) { return blink::WebString(); } // If we're in the middle of committing a load, the data source we need // will still be provisional. WebFrame* main_frame = render_view_->webview()->mainFrame(); WebDataSource* data_source = NULL; if (main_frame->provisionalDataSource()) data_source = main_frame->provisionalDataSource(); else data_source = main_frame->dataSource(); InternalDocumentStateData* internal_data = data_source ? InternalDocumentStateData::FromDataSource(data_source) : NULL; if (internal_data && internal_data->is_overriding_user_agent()) return WebString::fromUTF8( render_view_->renderer_preferences_.user_agent_override); return blink::WebString(); } blink::WebString RenderFrameImpl::doNotTrackValue(blink::WebFrame* frame) { if (render_view_->renderer_preferences_.enable_do_not_track) return WebString::fromUTF8("1"); return WebString(); } bool RenderFrameImpl::allowWebGL(blink::WebFrame* frame, bool default_value) { if (!default_value) return false; bool blocked = true; render_view_->Send(new ViewHostMsg_Are3DAPIsBlocked( render_view_->GetRoutingID(), GURL(frame->top()->document().securityOrigin().toString()), THREE_D_API_TYPE_WEBGL, &blocked)); return !blocked; } void RenderFrameImpl::didLoseWebGLContext(blink::WebFrame* frame, int arb_robustness_status_code) { render_view_->Send(new ViewHostMsg_DidLose3DContext( GURL(frame->top()->document().securityOrigin().toString()), THREE_D_API_TYPE_WEBGL, arb_robustness_status_code)); } void RenderFrameImpl::AddObserver(RenderFrameObserver* observer) { observers_.AddObserver(observer); } void RenderFrameImpl::RemoveObserver(RenderFrameObserver* observer) { observer->RenderFrameGone(); observers_.RemoveObserver(observer); } } // namespace content