Drop frontbuffers with ui-use-gpu-process, synchronized with browser, decoupled from backbuffer dro…

content/common/gpu/gpu_memory_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_COMMON_GPU_GPU_MEMORY_MANAGER_H_
 #define CONTENT_COMMON_GPU_GPU_MEMORY_MANAGER_H_
 #pragma once
 
 #if defined(ENABLE_GPU)
 
 #include <vector>
 
 #include "base/basictypes.h"
 #include "base/memory/weak_ptr.h"
 #include "content/common/content_export.h"
 
 class GpuCommandBufferStubBase;
 
 class CONTENT_EXPORT GpuMemoryManagerClient {
 public:
   virtual ~GpuMemoryManagerClient() {}
 
   virtual void AppendAllCommandBufferStubs(
       std::vector<GpuCommandBufferStubBase*>& stubs) = 0;
 };
 
 class CONTENT_EXPORT GpuMemoryManager {
  public:
-  enum { kDefaultMaxSurfacesWithFrontbufferSoftLimit = 8 };
+  enum { kDefaultMaxSurfacesWithFrontbufferSoftLimit = 3 };

[mmocny, 2012/06/01 21:06:51]

This was checked in accidentally.  I'll fix it in next patch upload.

[mmocny, 2012/06/05 14:52:35]

Done.

 
   // These are predefined values (in bytes) for
   // GpuMemoryAllocation::gpuResourceSizeInBytes.
   // Maximum Allocation for all tabs is a soft limit that can be exceeded
   // during the time it takes for renderers to respect new allocations,
   // including when switching tabs or opening a new window.
   // To alleviate some pressure, we decrease our desired limit by "one tabs'
   // worth" of memory.
   enum {
 #if defined(OS_ANDROID)
@@ skipping 25 matching lines @@
   bool manage_scheduled_;
   size_t max_surfaces_with_frontbuffer_soft_limit_;
   base::WeakPtrFactory<GpuMemoryManager> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(GpuMemoryManager);
 };
 
 #endif
 
 #endif // CONTENT_COMMON_GPU_GPU_MEMORY_MANAGER_H_