Move GPU messages to content. I've also switched the IPC structs to use the ...

content/content_common.gypi

 # 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.
 
 {
   'targets': [
     {
       'target_name': 'content_common',
       'type': '<(library)',
       'dependencies': [
@@ skipping 18 matching lines @@
         'common/content_message_generator.cc',
         'common/content_message_generator.h',
         'common/content_client.cc',
         'common/content_client.h',
         'common/content_constants.cc',
         'common/content_constants.h',
         'common/content_paths.cc',
         'common/content_paths.h',
         'common/content_switches.cc',
         'common/content_switches.h',
+        'common/dx_diag_node.cc',
+        'common/dx_diag_node.h',
         'common/file_system/file_system_dispatcher.cc',
         'common/file_system/file_system_dispatcher.h',
         'common/file_system/webfilesystem_callback_dispatcher.cc',
         'common/file_system/webfilesystem_callback_dispatcher.h',
         'common/file_system/webfilesystem_impl.cc',
         'common/file_system/webfilesystem_impl.h',
         'common/file_system/webfilewriter_impl.cc',
         'common/file_system/webfilewriter_impl.h',
         'common/file_system_messages.h',
+        'common/gpu_info.cc',
+        'common/gpu_info.h',
+        'common/gpu_messages.h',
         'common/message_router.cc',
         'common/message_router.h',
         'common/notification_details.cc',
         'common/notification_details.h',
         'common/notification_observer.h',
         'common/notification_registrar.cc',
         'common/notification_registrar.h',
         'common/notification_service.cc',
         'common/notification_service.h',
         'common/notification_source.cc',
@@ skipping 13 matching lines @@
         'common/socket_stream_messages.h',
       ],
       'conditions': [
         ['OS=="win"', {
           'msvs_guid': '062E9260-304A-4657-A74C-0D3AA1A0A0A4',
         }],
       ],
     },
   ],
 }