Make context groups share a TextureBufferManager

gpu/command_buffer/tests/gl_manager.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 "base/at_exit.h"
 #include "base/bind.h"
 #include "gpu/command_buffer/client/gles2_implementation.h"
 #include "gpu/command_buffer/client/gles2_lib.h"
 #include "gpu/command_buffer/client/transfer_buffer.h"
 #include "gpu/command_buffer/common/constants.h"
@@ skipping 75 matching lines @@
   attribs.push_back(EGL_GREEN_SIZE);
   attribs.push_back(8);
   attribs.push_back(EGL_BLUE_SIZE);
   attribs.push_back(8);
   attribs.push_back(EGL_ALPHA_SIZE);
   attribs.push_back(8);
   attribs.push_back(EGL_DEPTH_SIZE);
   attribs.push_back(16);
   attribs.push_back(EGL_NONE);
 
-  command_buffer_.reset(new CommandBufferService);
+  if (!context_group) {
+    context_group = new gles2::ContextGroup(
+        mailbox_manager_.get(), kBindGeneratesResource);
+  }
+
+  decoder_.reset(::gpu::gles2::GLES2Decoder::Create(context_group));
+
+  command_buffer_.reset(new CommandBufferService(
+      decoder_->GetContextGroup()->transfer_buffer_manager()));
   ASSERT_TRUE(command_buffer_->Initialize())
       << "could not create command buffer service";
 
-  decoder_.reset(::gpu::gles2::GLES2Decoder::Create(
-      context_group ? context_group :
-          new gles2::ContextGroup(
-              mailbox_manager_.get(), kBindGeneratesResource)));
-
   gpu_scheduler_.reset(new GpuScheduler(command_buffer_.get(),
                                         decoder_.get(),
                                         decoder_.get()));
 
   decoder_->set_engine(gpu_scheduler_.get());
 
   surface_ = gfx::GLSurface::CreateOffscreenGLSurface(false, size);
   ASSERT_TRUE(surface_.get() != NULL) << "could not create offscreen surface";
 
   context_ = gfx::GLContext::CreateGLContext(share_group_.get(),
@@ skipping 66 matching lines @@
   ::gpu::CommandBuffer::State state = command_buffer_->GetState();
   ASSERT_EQ(::gpu::error::kNoError, state.error);
 }
 
 bool GLManager::GetBufferChanged(int32 transfer_buffer_id) {
   return gpu_scheduler_->SetGetBuffer(transfer_buffer_id);
 }
 
 }  // namespace gpu