GPU: Build most of the gpu as a single DLL.

gpu/gpu_common.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.
 
 {
   'targets': [
     {
       # Library emulates GLES2 using command_buffers.
       'target_name': 'gles2_implementation',
       'type': '<(component)',
@@ skipping 192 matching lines @@
       ],
       'sources': [
         'command_buffer/common/gl_mock.h',
         'command_buffer/common/gl_mock.cc',
         'command_buffer/service/gles2_cmd_decoder_mock.cc',
         'command_buffer/service/gles2_cmd_decoder_mock.cc',
       ],
     },
   ],
 }