Implement native GMB backbuffers in the GLES2 Command Decoder.

gpu/command_buffer/service/context_group.cc

 // 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.
 
 #include "gpu/command_buffer/service/context_group.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <algorithm>
@@ skipping 45 matching lines @@
 }  // namespace anonymous
 
 ContextGroup::ContextGroup(
     const GpuPreferences& gpu_preferences,
     const scoped_refptr<MailboxManager>& mailbox_manager,
     const scoped_refptr<MemoryTracker>& memory_tracker,
     const scoped_refptr<ShaderTranslatorCache>& shader_translator_cache,
     const scoped_refptr<FramebufferCompletenessCache>&
         framebuffer_completeness_cache,
     const scoped_refptr<FeatureInfo>& feature_info,
-    bool bind_generates_resource)
+    bool bind_generates_resource,
+    gpu::ImageFactory* image_factory)
     : gpu_preferences_(gpu_preferences),
       mailbox_manager_(mailbox_manager),
       memory_tracker_(memory_tracker),
       shader_translator_cache_(shader_translator_cache),
 #if defined(OS_MACOSX)
       // Framebuffer completeness is not cacheable on OS X because of dynamic
       // graphics switching.
       // http://crbug.com/180876
       // TODO(tobiasjs): determine whether GPU switching is possible
       // programmatically, rather than just hardcoding this behaviour
@@ skipping 15 matching lines @@
       max_draw_buffers_(1u),
       max_dual_source_draw_buffers_(0u),
       max_vertex_output_components_(0u),
       max_fragment_input_components_(0u),
       min_program_texel_offset_(0),
       max_program_texel_offset_(0),
       max_transform_feedback_separate_attribs_(0u),
       max_uniform_buffer_bindings_(0u),
       uniform_buffer_offset_alignment_(1u),
       program_cache_(NULL),
-      feature_info_(feature_info) {
+      feature_info_(feature_info),
+      image_factory_(image_factory) {
   {
     DCHECK(feature_info_);
     if (!mailbox_manager_.get())
       mailbox_manager_ = new MailboxManagerImpl;
     transfer_buffer_manager_ = new TransferBufferManager(memory_tracker_.get());
   }
 }
 
 bool ContextGroup::Initialize(GLES2Decoder* decoder,
                               ContextType context_type,
@@ skipping 479 matching lines @@
     GLuint client_id, GLuint* service_id) const {
   Buffer* buffer = buffer_manager_->GetBuffer(client_id);
   if (!buffer)
     return false;
   *service_id = buffer->service_id();
   return true;
 }
 
 }  // namespace gles2
 }  // namespace gpu