Implement proper synchronization between HW video decode IPC and CommandBuffer.

gpu/gpu.gyp

 # Copyright (c) 2011 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.
 
 {
   'variables': {
     'chromium_code': 1,
     # These are defined here because we need to build this library twice. Once
     # with extra parameter checking. Once with no parameter checking to be 100%
     # OpenGL ES 2.0 compliant for the conformance tests.
@@ skipping 28 matching lines @@
         '../base/base.gyp:base',
       ],
       'export_dependent_settings': [
         '../base/base.gyp:base',
       ],
       'sources': [
         'command_buffer/common/bitfield_helpers.h',
         'command_buffer/common/buffer.h',
         'command_buffer/common/cmd_buffer_common.h',
         'command_buffer/common/cmd_buffer_common.cc',
+        'command_buffer/common/command_buffer.cc',
         'command_buffer/common/command_buffer.h',
         'command_buffer/common/constants.h',
         'command_buffer/common/gles2_cmd_ids_autogen.h',
         'command_buffer/common/gles2_cmd_ids.h',
         'command_buffer/common/gles2_cmd_format_autogen.h',
         'command_buffer/common/gles2_cmd_format.cc',
         'command_buffer/common/gles2_cmd_format.h',
         'command_buffer/common/gles2_cmd_utils.cc',
         'command_buffer/common/gles2_cmd_utils.h',
         'command_buffer/common/id_allocator.cc',
@@ skipping 327 matching lines @@
       },
     ],
   ],
 }
 
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