Add GPU memory tab to the task manager.

chrome/browser/ui/webui/gpu_internals_ui.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 "chrome/browser/ui/webui/gpu_internals_ui.h"
 
 #include <string>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
@@ skipping 50 matching lines @@
       public CrashUploadList::Delegate {
  public:
   GpuMessageHandler();
   virtual ~GpuMessageHandler();
 
   // WebUIMessageHandler implementation.
   virtual void RegisterMessages() OVERRIDE;
 
   // GpuDataManagerObserver implementation.
   virtual void OnGpuInfoUpdate() OVERRIDE;
+  virtual void OnVidmemUpdate(const content::GPUVidmem& vidmem) OVERRIDE {}
 
   // CrashUploadList::Delegate implemenation.
   virtual void OnCrashListAvailable() OVERRIDE;
 
   // Messages
   void OnBrowserBridgeInitialized(const ListValue* list);
   void OnCallAsync(const ListValue* list);
 
   // Submessages dispatched from OnCallAsync
   Value* OnRequestClientInfo(const ListValue* list);
@@ skipping 215 matching lines @@
 ////////////////////////////////////////////////////////////////////////////////
 
 GpuInternalsUI::GpuInternalsUI(content::WebUI* web_ui)
     : WebUIController(web_ui) {
   web_ui->AddMessageHandler(new GpuMessageHandler());
 
   // Set up the chrome://gpu-internals/ source.
   Profile* profile = Profile::FromWebUI(web_ui);
   ChromeURLDataManager::AddDataSource(profile, CreateGpuHTMLSource());
 }