Revert my change to get the tree green. Not sure why the tests became flaky....

chrome/common/common.scons

 # Copyright (c) 2006-2008 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.
 
 Import('env')
 
 env = env.Clone()
 
 env.SConscript([
     '$BREAKPAD_DIR/using_breakpad.scons',
@@ skipping 76 matching lines @@
     'ipc_logging.h',
     'ipc_message.cc',
     'ipc_message.h',
     'ipc_message_macros.h',
     'ipc_message_utils.cc',
     'ipc_message_utils.h',
     'ipc_sync_channel.cc',
     'ipc_sync_channel.h',
     'ipc_sync_message.cc',
     'ipc_sync_message.h',
+    'plugin_messages.cc',
     'plugin_messages.h',
     'plugin_messages_internal.h',
+    'render_messages.cc',
     'render_messages.h',
     'render_messages_internal.h',
   ]),
     'animation.cc',
     'animation.h',
     'child_process.cc',
     'child_process.h',
     'chrome_constants.cc',
     'chrome_constants.h',
     'chrome_counters.cc',
@@ skipping 111 matching lines @@
   # TODO(port): Port these.
   input_files.Remove(
       'chrome_plugin_util.cc',
       'chrome_process_filter.cc',
       'drag_drop_types.cc',
       'gfx/emf.cc',
       'gfx/icon_util.cc',
       'gfx/path.cc',
       'ipc_logging.cc',
       'os_exchange_data.cc',
+      'plugin_messages.cc',
       'process_watcher.cc',
   )
 
 if not env.Bit('windows'):
   # Windows specific files
   input_files.Remove(
       'chrome_paths_win.cc',
       'classfactory.cc',
       'gfx/chrome_canvas_win.cc',
       'gfx/chrome_font_win.cc',
@@ skipping 73 matching lines @@
                 './common.vsprops',
                 '$(SolutionDir)../build/release.vsprops',
             ])
 
 p.AddFileConfig('../tools/build/win/precompiled.cc',
                 'Debug|Win32',
                 tools=[
                     MSVSTool('VCCLCompilerTool',
                              UsePrecompiledHeader='1'),
                 ])