Add GPU memory tab to the task manager.

chrome/browser/gpu_blacklist.h

 // 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.
 
 #ifndef CHROME_BROWSER_GPU_BLACKLIST_H_
 #define CHROME_BROWSER_GPU_BLACKLIST_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 367 matching lines @@
   void Clear();
 
   // Check if the entry is supported by the current version of browser.
   // By default, if there is no browser version information in the entry,
   // return kSupported;
   BrowserVersionSupport IsEntrySupportedByCurrentBrowserVersion(
       const base::DictionaryValue* value);
 
   // GpuDataManager::Observer implementation.
   virtual void OnGpuInfoUpdate() OVERRIDE;
+  virtual void OnVideoMemoryUsageStatsUpdate(
+      const content::GPUVideoMemoryUsageStats& video_memory) OVERRIDE {}
 
   // Returns the number of entries.  This is only for tests.
   size_t num_entries() const;
 
   // Check if any entries contain unknown fields.  This is only for tests.
   bool contains_unknown_fields() const { return contains_unknown_fields_; }
 
   static NumericOp StringToNumericOp(const std::string& op);
 
   scoped_ptr<Version> version_;
   std::vector<ScopedGpuBlacklistEntry> blacklist_;
 
   scoped_ptr<Version> browser_version_;
 
   // This records all the blacklist entries that are appliable to the current
   // user machine.  It is updated everytime DetermineGpuFeatureType() is
   // called and is used later by GetGpuFeatureTypeEntries().
   std::vector<ScopedGpuBlacklistEntry> active_entries_;
 
   uint32 max_entry_id_;
 
   bool contains_unknown_fields_;
 
   DISALLOW_COPY_AND_ASSIGN(GpuBlacklist);
 };
 
 #endif  // CHROME_BROWSER_GPU_BLACKLIST_H_