Add LayerTreeHostClient::{will,did}UpdateLayer, report layer updates to DevTools

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 899 matching lines @@
 #endif  // defined(OS_MACOSX)
 
 #if defined(OS_ANDROID)
   media_player_manager_.reset(new WebMediaPlayerManagerAndroid());
 #endif
 
   // The next group of objects all implement RenderViewObserver, so are deleted
   // along with the RenderView automatically.
   devtools_agent_ = new DevToolsAgent(this);
   mouse_lock_dispatcher_ = new RenderViewMouseLockDispatcher(this);
-
+  if (RenderWidgetCompositor* rwc = compositor()) {
+    webview()->devToolsAgent()->setLayerTreeId(rwc->GetLayerTreeId());
+  }
   new ImageLoadingHelper(this);
 
   // Create renderer_accessibility_ if needed.
   OnSetAccessibilityMode(params->accessibility_mode);
 
   new IdleUserDetector(this);
 
   if (command_line.HasSwitch(switches::kDomAutomationController))
     enabled_bindings_ |= BINDINGS_POLICY_DOM_AUTOMATION;
   if (command_line.HasSwitch(switches::kStatsCollectionController))
@@ skipping 5393 matching lines @@
     return;
   if (!webview()->devToolsAgent())
     return;
   webview()->devToolsAgent()->willComposite();
 }
 
 bool RenderViewImpl::AllowPartialSwap() const {
   return allow_partial_swap_;
 }
 
+void RenderViewImpl::initializeLayerTreeView() {
+  RenderWidget::initializeLayerTreeView();
+  RenderWidgetCompositor* rwc = compositor();
+  if (!rwc || !webview() || !webview()->devToolsAgent())
+    return;
+  webview()->devToolsAgent()->setLayerTreeId(rwc->GetLayerTreeId());
+}
+
 #if defined(OS_WIN)
 void RenderViewImpl::PluginFocusChanged(bool focused, int plugin_id) {
   if (focused)
     focused_plugin_id_ = plugin_id;
   else
     focused_plugin_id_ = -1;
 }
 #endif
 
 #if defined(OS_MACOSX)
@@ skipping 421 matching lines @@
     WebURL url = icon_urls[i].iconURL();
     if (!url.isEmpty())
       urls.push_back(FaviconURL(url,
                                 ToFaviconType(icon_urls[i].iconType())));
   }
   SendUpdateFaviconURL(urls);
 }
 
 
 }  // namespace content