Move LayoutTestMessageFilter-related IPCs to their own message file.

content/content_shell.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.
 
 {
   'variables': {
     'content_shell_product_name': 'Content Shell',
     # The "19" is so that sites that sniff for version think that this is
     # something reasonably current; the "77.34.5" is a hint that this isn't a
     # standard Chrome.
@@ skipping 158 matching lines @@
         'shell/browser/shell_url_request_context_getter.cc',
         'shell/browser/shell_url_request_context_getter.h',
         'shell/browser/shell_views.cc',
         'shell/browser/shell_web_contents_view_delegate_android.cc',
         'shell/browser/shell_web_contents_view_delegate_creator.h',
         'shell/browser/shell_web_contents_view_delegate.h',
         'shell/browser/shell_web_contents_view_delegate_mac.mm',
         'shell/browser/shell_web_contents_view_delegate_win.cc',
         'shell/browser/webkit_test_controller.cc',
         'shell/browser/webkit_test_controller.h',
+        'shell/common/layout_test/layout_test_messages.cc',
+        'shell/common/layout_test/layout_test_messages.h',
         'shell/common/leak_detection_result.h',
         'shell/common/shell_content_client.cc',
         'shell/common/shell_content_client.h',
         'shell/common/shell_messages.cc',
         'shell/common/shell_messages.h',
         'shell/common/shell_switches.cc',
         'shell/common/shell_switches.h',
         'shell/common/shell_test_configuration.cc',
         'shell/common/shell_test_configuration.h',
         'shell/common/test_runner/test_preferences.cc',
@@ skipping 948 matching lines @@
                 '--input_symbol', '<(PRODUCT_DIR)/content_shell.exe.pdb',
                 '--destination_dir', '<(dest_dir)',
               ],
             },
           ],
         },
       ],
     }],  # OS=="win" and fastbuild==0 and target_arch=="ia32"
   ]
 }