[mac] Let cmd-e write the selection into the find pasteboard.

chrome/chrome.gyp

 # Copyright (c) 2009 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,
 
     # Define the common dependencies that contain all the actual
     # Chromium functionality.  This list gets pulled in below by
@@ skipping 1700 matching lines @@
         'browser/renderer_host/render_widget_host_view_win.cc',
         'browser/renderer_host/render_widget_host_view_win.h',
         'browser/renderer_host/resource_dispatcher_host.cc',
         'browser/renderer_host/resource_dispatcher_host.h',
         'browser/renderer_host/resource_dispatcher_host_request_info.cc',
         'browser/renderer_host/resource_dispatcher_host_request_info.h',
         'browser/renderer_host/resource_handler.h',
         'browser/renderer_host/resource_message_filter.cc',
         'browser/renderer_host/resource_message_filter.h',
         'browser/renderer_host/resource_message_filter_gtk.cc',
+        'browser/renderer_host/resource_message_filter_mac.mm',
         'browser/renderer_host/resource_message_filter_win.cc',
         'browser/renderer_host/resource_request_details.h',
         'browser/renderer_host/safe_browsing_resource_handler.cc',
         'browser/renderer_host/safe_browsing_resource_handler.h',
         'browser/renderer_host/save_file_resource_handler.cc',
         'browser/renderer_host/save_file_resource_handler.h',
         'browser/renderer_host/site_instance.cc',
         'browser/renderer_host/site_instance.h',
         'browser/renderer_host/sync_resource_handler.cc',
         'browser/renderer_host/sync_resource_handler.h',
@@ skipping 4350 matching lines @@
               # Use outputs of this action as inputs for the main target build.
               # Seems as a misnomer but makes this happy on Linux (scons).
               'process_outputs_as_sources': 1,
             },
           ],  # 'actions'
         },
       ]
     }],
   ],  # 'conditions'
 }