GPU client side changes for GpuMemoryBuffers

gpu/command_buffer/command_buffer.gypi

 # 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.
 
 {
   'target_defaults': {
     'variables': {
       'gles2_utils_target': 0,
     },
     'target_conditions': [
       # This part is shared between the targets defined below.
       ['gles2_utils_target==1', {
         'defines': [
           'GLES2_UTILS_IMPLEMENTATION',
         ],
         'sources': [
           'common/gles2_cmd_format.h',
           'common/gles2_cmd_utils.cc',
           'common/gles2_cmd_utils.h',
           'common/gles2_utils_export.h',
+          'common/image_buffer_manager.h',
           'common/logging.cc',
           'common/logging.h',
         ],
       }],
     ],
   },
 }