Chrome-side patch for IsAppInstalled.

content/content_common.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': [
     '../base/base.gyp:base',
     '../cc/cc.gyp:cc',
     '../components/tracing.gyp:tracing',
     '../device/bluetooth/bluetooth.gyp:device_bluetooth',
@@ skipping 467 matching lines @@
       'common/input/synthetic_web_input_event_builders.cc',
       'common/input/synthetic_web_input_event_builders.h',
       'common/input/touch_event_stream_validator.cc',
       'common/input/touch_event_stream_validator.h',
       'common/input/web_input_event_queue.h',
       'common/input/web_input_event_traits.cc',
       'common/input/web_input_event_traits.h',
       'common/input/web_touch_event_traits.cc',
       'common/input/web_touch_event_traits.h',
       'common/input_messages.h',
+      'common/installedapp/installed_app_provider_impl.h',
+      'common/installedapp/installed_app_provider_impl_default.cc',
       'common/inter_process_time_ticks_converter.cc',
       'common/inter_process_time_ticks_converter.h',
       'common/mac/attributed_string_coder.h',
       'common/mac/attributed_string_coder.mm',
       'common/mac/font_descriptor.h',
       'common/mac/font_descriptor.mm',
       'common/mac/font_loader.h',
       'common/mac/font_loader.mm',
       'common/manifest_manager_messages.h',
       'common/media/aec_dump_messages.h',
@@ skipping 601 matching lines @@
         'common/gpu/client/gpu_memory_buffer_impl_ozone.cc',
         'common/gpu/client/gpu_memory_buffer_impl_ozone_native_pixmap.cc',
         'common/gpu/client/gpu_memory_buffer_impl_ozone_native_pixmap.h',
         'common/gpu/gpu_memory_buffer_factory_ozone.cc',
         'common/gpu/gpu_memory_buffer_factory_ozone_native_pixmap.cc',
         'common/gpu/gpu_memory_buffer_factory_ozone_native_pixmap.h',
       ],
     }],
   ],
 }