GPU: Make gles2_utils a separate component.

gpu/command_buffer/command_buffer.gyp

-# Copyright (c) 2011 The Chromium Authors. All rights reserved.
+# 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.
 
 {
   'variables': {
     'chromium_code': 1,
   },
   'targets': [
     {
       'target_name': 'gles2_utils',
-      'type': 'static_library',
+      'type': '<(component)',
       'include_dirs': [
         '<(DEPTH)/third_party/khronos',
       ],
       'all_dependent_settings': {
         'include_dirs': [
           '<(DEPTH)/third_party/khronos',
         ],
       },
       'dependencies': [
         '../../base/base.gyp:base',
       ],
       'export_dependent_settings': [
         '../../base/base.gyp:base',
       ],
+      '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/logging.cc',
         'common/logging.h',
       ],
     },
   ],
 }