Tracking push events for lucid sleep

extensions/extensions.gyp

 # Copyright 2013 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,
   },
   'targets': [
     {
@@ skipping 591 matching lines @@
         'browser/content_verify_job.h',
         'browser/error_map.cc',
         'browser/error_map.h',
         'browser/event_listener_map.cc',
         'browser/event_listener_map.h',
         'browser/event_router.cc',
         'browser/event_router.h',
         'browser/extension_host.cc',
         'browser/extension_host.h',
         'browser/extension_host_delegate.h',
+        'browser/extension_host_observer.h',
         'browser/extension_error.cc',
         'browser/extension_error.h',
         'browser/extension_function.cc',
         'browser/extension_function.h',
         'browser/extension_function_dispatcher.cc',
         'browser/extension_function_dispatcher.h',
         'browser/extension_function_registry.cc',
         'browser/extension_function_registry.h',
         'browser/extension_function_util.cc',
         'browser/extension_function_util.h',
@@ skipping 684 matching lines @@
       'conditions': [
         ['OS=="win" and win_use_allocator_shim==1', {
           'dependencies': [
             '../base/allocator/allocator.gyp:allocator',
           ],
         }],
       ],
     },
   ]
 }