Mac: Give app_shim code a nicer home

chrome/chrome_browser.gypi

 # Copyright 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': {
     # All .cc, .h, .m, and .mm files under browser except for:
     # * tests and mocks.
     # * code below browser/chromeos
     # * code below browser/extensions
@@ skipping 2977 matching lines @@
         }],
         ['OS!="android" and OS!="ios" and configuration_policy==1', {
           'sources': [
             'browser/download/download_dir_policy_handler.cc',
             'browser/download/download_dir_policy_handler.h',
           ],
         }],
         ['OS=="mac"', {
           'dependencies': [
             'app_shim',
+            'browser_app_shim',
           ],
           'sources': [ '<@(chrome_browser_mac_sources)' ]
         }],
         ['chromeos==1 or OS=="ios"', {
           'sources!': [
             'browser/metrics/signin_status_metrics_provider.cc',
             'browser/metrics/signin_status_metrics_provider.h',
           ],
         }],
         ['toolkit_views==1', {
@@ skipping 560 matching lines @@
           'variables': {
             'proto_in_dir': 'browser/sync_file_system/drive_backend',
             'proto_out_dir': 'chrome/browser/sync_file_system/drive_backend',
           },
           'includes': [ '../build/protoc.gypi' ]
         },
       ],
     },],
   ],
 }