Add calls to inform gpu of browser window count

content/public/browser/gpu_data_manager.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_PUBLIC_BROWSER_GPU_DATA_MANAGER_H_
 #define CONTENT_PUBLIC_BROWSER_GPU_DATA_MANAGER_H_
 
 #include <string>
 
 #include "content/common/content_export.h"
@@ skipping 61 matching lines @@
       int level, const std::string& header, const std::string& message) = 0;
 
   // Returns a new copy of the ListValue.  Caller is responsible to release
   // the returned value.
   virtual base::ListValue* GetLogMessages() const = 0;
 
   // Registers/unregister |observer|.
   virtual void AddObserver(GpuDataManagerObserver* observer) = 0;
   virtual void RemoveObserver(GpuDataManagerObserver* observer) = 0;
 
+  // Notifies the gpu process about the number of browser windows, so
+  // they can be used to determine managed memory allocation.
+  virtual void SetWindowCount(uint32 count) = 0;
+  virtual uint32 GetWindowCount() const = 0;
+
  protected:
   virtual ~GpuDataManager() {}
 };
 
 };  // namespace content
 
 #endif  // CONTENT_PUBLIC_BROWSER_GPU_DATA_MANAGER_H_