Run the later parts of startup as UI thread tasks

content/content_browser.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.
 
 {
   'dependencies': [
     'browser/speech/proto/speech_proto.gyp:speech_proto',
     '../base/base.gyp:base_static',
     '../crypto/crypto.gyp:crypto',
     '../google_apis/google_apis.gyp:google_apis',
@@ skipping 214 matching lines @@
     'browser/accessibility/browser_accessibility_manager_mac.mm',
     'browser/accessibility/browser_accessibility_manager_win.cc',
     'browser/accessibility/browser_accessibility_manager_win.h',
     'browser/accessibility/browser_accessibility_state_impl.cc',
     'browser/accessibility/browser_accessibility_state_impl_win.cc',
     'browser/accessibility/browser_accessibility_state_impl.h',
     'browser/accessibility/browser_accessibility_win.cc',
     'browser/accessibility/browser_accessibility_win.h',
     'browser/android/android_browser_process.cc',
     'browser/android/android_browser_process.h',
+    'browser/android/android_startup_observer.cc',
+    'browser/android/android_startup_observer.h',
     'browser/android/browser_jni_registrar.cc',
     'browser/android/browser_jni_registrar.h',
     'browser/android/browser_media_player_manager.cc',
     'browser/android/browser_media_player_manager.h',
     'browser/android/child_process_launcher_android.cc',
     'browser/android/child_process_launcher_android.h',
     'browser/android/content_settings.cc',
     'browser/android/content_settings.h',
     'browser/android/content_startup_flags.cc',
     'browser/android/content_startup_flags.h',
@@ skipping 1224 matching lines @@
         '../third_party/speex/speex.gyp:libspeex',
       ],
     }],
     ['linux_use_libgps==1', {
       'dependencies': [
         '../build/linux/system.gyp:libgps',
       ],
     }],
   ],
 }