gpu: Refactor GpuMemoryBuffer framework for multi-process support.

gpu/command_buffer/client/gl_in_process_context.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 GPU_COMMAND_BUFFER_CLIENT_GL_IN_PROCESS_CONTEXT_H_
 #define GPU_COMMAND_BUFFER_CLIENT_GL_IN_PROCESS_CONTEXT_H_
 
 #include "base/callback.h"
 #include "base/compiler_specific.h"
 #include "gles2_impl_export.h"
 #include "ui/gfx/native_widget_types.h"
 #include "ui/gl/gl_surface.h"
 #include "ui/gl/gpu_preference.h"
 
 namespace gfx {
 class Size;
 }
 
 namespace gpu {
 
 namespace gles2 {
 class GLES2Implementation;
 }
 
-class GpuMemoryBufferFactory;
-
 // The default uninitialized value is -1.
 struct GLES2_IMPL_EXPORT GLInProcessContextAttribs {
   GLInProcessContextAttribs();
 
   int32 alpha_size;
   int32 blue_size;
   int32 green_size;
   int32 red_size;
   int32 depth_size;
   int32 stencil_size;
   int32 samples;
   int32 sample_buffers;
 };
 
 class GLES2_IMPL_EXPORT GLInProcessContext {
  public:
   virtual ~GLInProcessContext() {}
 
-  // Must be called before any GLInProcessContext instances are created.
-  static void SetGpuMemoryBufferFactory(GpuMemoryBufferFactory* factory);
-
   // Create a GLInProcessContext, if |is_offscreen| is true, renders to an
   // offscreen context. |attrib_list| must be NULL or a NONE-terminated list
   // of attribute/value pairs.
   static GLInProcessContext* CreateContext(
       bool is_offscreen,
       gfx::AcceleratedWidget window,
       const gfx::Size& size,
       bool share_resources,
       const char* allowed_extensions,
       const GLInProcessContextAttribs& attribs,
@@ skipping 18 matching lines @@
   virtual void SignalQuery(unsigned query, const base::Closure& callback) = 0;
 
   // Allows direct access to the GLES2 implementation so a GLInProcessContext
   // can be used without making it current.
   virtual gles2::GLES2Implementation* GetImplementation() = 0;
 };
 
 }  // namespace gpu
 
 #endif  // GPU_COMMAND_BUFFER_CLIENT_GL_IN_PROCESS_CONTEXT_H_