Add calls to inform gpu of browser window count

content/browser/gpu/gpu_data_manager_impl.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 CONTENT_BROWSER_GPU_GPU_DATA_MANAGER_IMPL_H_
 #define CONTENT_BROWSER_GPU_GPU_DATA_MANAGER_IMPL_H_
 
 #include <set>
 #include <string>
 
@@ skipping 32 matching lines @@
   virtual bool IsCompleteGpuInfoAvailable() const OVERRIDE;
   virtual void RequestVideoMemoryUsageStatsUpdate() const OVERRIDE;
   virtual bool ShouldUseSoftwareRendering() const OVERRIDE;
   virtual void RegisterSwiftShaderPath(const FilePath& path) OVERRIDE;
   virtual void AddLogMessage(int level, const std::string& header,
                              const std::string& message) OVERRIDE;
   virtual base::ListValue* GetLogMessages() const OVERRIDE;
   virtual void AddObserver(content::GpuDataManagerObserver* observer) OVERRIDE;
   virtual void RemoveObserver(
       content::GpuDataManagerObserver* observer) OVERRIDE;
+  virtual void SetWindowCount(uint32 count) OVERRIDE;
+
 
   // This collects preliminary GPU info, load GpuBlacklist, and compute the
   // preliminary blacklisted features; it should only be called at browser
   // startup time in UI thread before the IO restriction is turned on.
   void Initialize();
 
   // Only update if the current GPUInfo is not finalized.  If blacklist is
   // loaded, run through blacklist and update blacklisted features.
   void UpdateGpuInfo(const content::GPUInfo& gpu_info);
 
@@ skipping 89 matching lines @@
   bool card_blacklisted_;
 
   // We disable histogram stuff in testing, especially in unit tests because
   // they cause random failures.
   bool update_histograms_;
 
   DISALLOW_COPY_AND_ASSIGN(GpuDataManagerImpl);
 };
 
 #endif  // CONTENT_BROWSER_GPU_GPU_DATA_MANAGER_IMPL_H_