Fix location of appcache_service.h in .gypi file.

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': [
     '../base/base.gyp:base_static',
     '../crypto/crypto.gyp:crypto',
     '../google_apis/google_apis.gyp:google_apis',
     '../net/net.gyp:net',
@@ skipping 37 matching lines @@
       'public/browser/android/content_view_layer_renderer.h',
       'public/browser/android/devtools_auth.h',
       'public/browser/android/download_controller_android.h',
       'public/browser/android/external_video_surface_container.h',
       'public/browser/android/layer_tree_build_helper.h',
       'public/browser/android/synchronous_compositor_client.h',
       'public/browser/android/synchronous_compositor.cc',
       'public/browser/android/synchronous_compositor.h',
       'public/browser/android/ui_resource_client_android.h',
       'public/browser/android/ui_resource_provider.h',
-      'public/browser/appcache/appcache_service.h',
+      'public/browser/appcache_service.h',
       'public/browser/ax_event_notification_details.cc',
       'public/browser/ax_event_notification_details.h',
       'public/browser/blob_handle.h',
       'public/browser/browser_accessibility_state.h',
       'public/browser/browser_child_process_host.h',
       'public/browser/browser_child_process_host_delegate.cc',
       'public/browser/browser_child_process_host_delegate.h',
       'public/browser/browser_child_process_host_iterator.cc',
       'public/browser/browser_child_process_host_iterator.h',
       'public/browser/browser_child_process_observer.cc',
@@ skipping 1774 matching lines @@
       'sources': [
         'browser/media/cdm/browser_cdm_manager.cc',
         'browser/media/cdm/browser_cdm_manager.h',
         # This works on Android because enable_browser_cdms==1 on Android.
         'browser/media/media_web_contents_observer.cc',
         'browser/media/media_web_contents_observer.h',
       ],
     }],
   ],
 }