Give the main frame a RenderWidget.

content/renderer/render_view_impl.cc

 // Copyright (c) 2012 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_view_impl.h"
 
 #include <algorithm>
 #include <cmath>
 
 #include "base/auto_reset.h"
@@ skipping 626 matching lines @@
       history_list_length_(0),
       frames_in_progress_(0),
       target_url_status_(TARGET_NONE),
       uses_temporary_zoom_level_(false),
 #if defined(OS_ANDROID)
       top_controls_constraints_(TOP_CONTROLS_STATE_BOTH),
 #endif
       has_focus_(false),
       has_scrolled_focused_editable_node_into_rect_(false),
       main_render_frame_(nullptr),
+      frame_widget_(nullptr),
       speech_recognition_dispatcher_(NULL),
       mouse_lock_dispatcher_(NULL),
 #if defined(OS_ANDROID)
       expected_content_intent_id_(0),
 #endif
 #if defined(OS_WIN)
       focused_plugin_id_(-1),
 #endif
 #if defined(ENABLE_PLUGINS)
       plugin_find_handler_(NULL),
@@ skipping 26 matching lines @@
   g_view_map.Get().insert(std::make_pair(webview(), this));
   g_routing_id_view_map.Get().insert(std::make_pair(routing_id_, this));
 
   const base::CommandLine& command_line =
       *base::CommandLine::ForCurrentProcess();
 
   if (command_line.HasSwitch(switches::kStatsCollectionController))
     stats_collection_observer_.reset(new StatsCollectionObserver(this));
 
   if (params.main_frame_routing_id != MSG_ROUTING_NONE) {
-    main_render_frame_ =
-        RenderFrameImpl::CreateMainFrame(this, params.main_frame_routing_id);
+    main_render_frame_ = RenderFrameImpl::CreateMainFrame(
+        this, params.main_frame_routing_id, params.main_frame_widget_routing_id,
+        params.hidden, screen_info(), compositor_deps_);
   }
 
   if (params.proxy_routing_id != MSG_ROUTING_NONE) {
     CHECK(params.swapped_out);
     if (main_render_frame_) {
       DCHECK(!SiteIsolationPolicy::IsSwappedOutStateForbidden());
       RenderFrameProxy* proxy = RenderFrameProxy::CreateProxyToReplaceFrame(
           main_render_frame_, params.proxy_routing_id,
           blink::WebTreeScopeType::Document);
       main_render_frame_->set_render_frame_proxy(proxy);
@@ skipping 110 matching lines @@
   if (opener_frame && !was_created_by_renderer)
     webview()->mainFrame()->setOpener(opener_frame);
 
   // If we are initially swapped out, navigate to kSwappedOutURL.
   // This ensures we are in a unique origin that others cannot script.
   if (is_swapped_out_ && webview()->mainFrame()->isWebLocalFrame())
     main_render_frame_->NavigateToSwappedOutURL();
 }
 
 RenderViewImpl::~RenderViewImpl() {
+  DCHECK(!frame_widget_);
+
   for (BitmapMap::iterator it = disambiguation_bitmaps_.begin();
        it != disambiguation_bitmaps_.end();
        ++it)
     delete it->second;
 
   // If file chooser is still waiting for answer, dispatch empty answer.
   while (!file_chooser_completions_.empty()) {
     if (file_chooser_completions_.front()->completion) {
       file_chooser_completions_.front()->completion->didChooseFile(
           WebVector<WebString>());
@@ skipping 733 matching lines @@
   params.disposition = NavigationPolicyToDisposition(policy);
   if (!request.isNull()) {
     params.target_url = request.url();
     params.referrer = GetReferrerFromRequest(creator, request);
   }
   params.features = features;
 
   for (size_t i = 0; i < features.additionalFeatures.size(); ++i)
     params.additional_features.push_back(features.additionalFeatures[i]);
 
-  int32 routing_id = MSG_ROUTING_NONE;
-  int32 main_frame_routing_id = MSG_ROUTING_NONE;
-  int64 cloned_session_storage_namespace_id = 0;
-
-  RenderThread::Get()->Send(
-      new ViewHostMsg_CreateWindow(params, &routing_id, &main_frame_routing_id,
-                                   &cloned_session_storage_namespace_id));
-  if (routing_id == MSG_ROUTING_NONE)
+  ViewHostMsg_CreateWindow_Reply reply;
+  RenderThread::Get()->Send(new ViewHostMsg_CreateWindow(params, &reply));
+  if (reply.route_id == MSG_ROUTING_NONE)
     return NULL;
 
   WebUserGestureIndicator::consumeUserGesture();
 
   // While this view may be a background extension page, it can spawn a visible
   // render view. So we just assume that the new one is not another background
   // page instead of passing on our own value.
   // TODO(vangelis): Can we tell if the new view will be a background page?
   bool never_visible = false;
 
   ViewMsg_Resize_Params initial_size = ViewMsg_Resize_Params();
   initial_size.screen_info = screen_info_;
 
   // The initial hidden state for the RenderViewImpl here has to match what the
   // browser will eventually decide for the given disposition. Since we have to
   // return from this call synchronously, we just have to make our best guess
   // and rely on the browser sending a WasHidden / WasShown message if it
   // disagrees.
   ViewMsg_New_Params view_params;
 
   RenderFrameImpl* creator_frame = RenderFrameImpl::FromWebFrame(creator);
   view_params.opener_frame_route_id = creator_frame->GetRoutingID();
   DCHECK_EQ(routing_id_, creator_frame->render_view()->GetRoutingID());
 
   view_params.window_was_created_with_opener = true;
   view_params.renderer_preferences = renderer_preferences_;
   view_params.web_preferences = webkit_preferences_;
-  view_params.view_id = routing_id;
-  view_params.main_frame_routing_id = main_frame_routing_id;
+  view_params.view_id = reply.route_id;
+  view_params.main_frame_routing_id = reply.main_frame_route_id;
+  view_params.main_frame_widget_routing_id = reply.main_frame_widget_route_id;
   view_params.session_storage_namespace_id =
-      cloned_session_storage_namespace_id;
+      reply.cloned_session_storage_namespace_id;
   view_params.swapped_out = false;
   // WebCore will take care of setting the correct name.
   view_params.replicated_frame_state = FrameReplicationState();
-  view_params.proxy_routing_id = MSG_ROUTING_NONE;
   view_params.hidden = (params.disposition == NEW_BACKGROUND_TAB);
   view_params.never_visible = never_visible;
   view_params.next_page_id = 1;
   view_params.initial_size = initial_size;
   view_params.enable_auto_resize = false;
   view_params.min_size = gfx::Size();
   view_params.max_size = gfx::Size();
 
   RenderViewImpl* view =
       RenderViewImpl::Create(compositor_deps_, view_params, true);
@@ skipping 58 matching lines @@
   // calls DidStopLoading() without a matching DidStartLoading().
   if (frames_in_progress_ == 0)
     return;
   frames_in_progress_--;
   if (frames_in_progress_ == 0) {
     DidStopLoadingIcons();
     FOR_EACH_OBSERVER(RenderViewObserver, observers_, DidStopLoading());
   }
 }
 
+void RenderViewImpl::AttachWebFrameWidget(blink::WebWidget* frame_widget) {
+  // The previous WebFrameWidget must already be detached by CloseForFrame().
+  DCHECK(!frame_widget_);
+  frame_widget_ = frame_widget;
+}
+
 void RenderViewImpl::SetZoomLevel(double zoom_level) {
   webview()->setZoomLevel(zoom_level);
   FOR_EACH_OBSERVER(RenderViewObserver, observers_, OnZoomLevelChanged());
 }
 
 void RenderViewImpl::didCancelCompositionOnSelectionChange() {
   Send(new InputHostMsg_ImeCancelComposition(routing_id()));
 }
 
 bool RenderViewImpl::handleCurrentKeyboardEvent() {
@@ skipping 1230 matching lines @@
   // WebPluginDelegateProxy is responsible for figuring out if this event
   // applies to it or not, so inform all the delegates.
   std::set<WebPluginDelegateProxy*>::iterator plugin_it;
   for (plugin_it = plugin_delegates_.begin();
        plugin_it != plugin_delegates_.end(); ++plugin_it) {
     (*plugin_it)->ImeCompositionCompleted(text, plugin_id);
   }
 }
 #endif  // OS_MACOSX
 
+void RenderViewImpl::CloseForFrame() {
+  DCHECK(frame_widget_);
+  frame_widget_->close();
+  frame_widget_ = nullptr;
+}
+
 void RenderViewImpl::Close() {
   // We need to grab a pointer to the doomed WebView before we destroy it.
   WebView* doomed = webview();
   RenderWidget::Close();
   g_view_map.Get().erase(doomed);
   g_routing_id_view_map.Get().erase(routing_id_);
   RenderThread::Get()->Send(new ViewHostMsg_Close_ACK(routing_id_));
 }
 
 void RenderViewImpl::DidHandleKeyEvent() {
@@ skipping 727 matching lines @@
     std::vector<gfx::Size> sizes;
     ConvertToFaviconSizes(icon_urls[i].sizes(), &sizes);
     if (!url.isEmpty())
       urls.push_back(
           FaviconURL(url, ToFaviconType(icon_urls[i].iconType()), sizes));
   }
   SendUpdateFaviconURL(urls);
 }
 
 }  // namespace content