Track managed memory usage in the command buffer.

gpu/command_buffer/service/renderbuffer_manager.h

Index: gpu/command_buffer/service/renderbuffer_manager.h
diff --git a/gpu/command_buffer/service/renderbuffer_manager.h b/gpu/command_buffer/service/renderbuffer_manager.h
index 2edfc34a2779c96e358761f129e7614654c5e87b..915be74972a65e0477fc66a6d082e4525f7bfb5f 100644
--- a/gpu/command_buffer/service/renderbuffer_manager.h
+++ b/gpu/command_buffer/service/renderbuffer_manager.h
@@ -11,14 +11,12 @@
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "gpu/command_buffer/service/gl_utils.h"
+#include "gpu/command_buffer/service/memory_tracking.h"
 #include "gpu/gpu_export.h"
 
 namespace gpu {
 namespace gles2 {
 
-class MemoryTracker;
-class MemoryTypeTracker;
-
 // This class keeps track of the renderbuffers and whether or not they have
 // been cleared.
 class GPU_EXPORT RenderbufferManager {
@@ -169,24 +167,20 @@ class GPU_EXPORT RenderbufferManager {
   bool GetClientId(GLuint service_id, GLuint* client_id) const;
 
   size_t mem_represented() const {
-    return mem_represented_;
+    return memory_tracker_->GetMemRepresented();
   }
 
  private:
-  void UpdateMemRepresented();
-
   void StartTracking(RenderbufferInfo* renderbuffer);
   void StopTracking(RenderbufferInfo* renderbuffer);
 
-  scoped_ptr<MemoryTypeTracker> renderbuffer_memory_tracker_;
+  scoped_ptr<MemoryTypeTracker> memory_tracker_;
 
   GLint max_renderbuffer_size_;
   GLint max_samples_;
 
   int num_uncleared_renderbuffers_;
 
-  size_t mem_represented_;
-
   // Counts the number of RenderbufferInfo allocated with 'this' as its manager.
   // Allows to check no RenderbufferInfo will outlive this.
   unsigned renderbuffer_info_count_;