Implement ManifestParser in content/.

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',
     '../components/tracing.gyp:tracing',
     '../gpu/command_buffer/command_buffer.gyp:gles2_utils',
     '../net/net.gyp:net',
@@ skipping 53 matching lines @@
       'public/common/file_chooser_params.h',
       'public/common/frame_navigate_params.cc',
       'public/common/frame_navigate_params.h',
       'public/common/geoposition.cc',
       'public/common/geoposition.h',
       'public/common/gpu_memory_stats.cc',
       'public/common/gpu_memory_stats.h',
       'public/common/injection_test_mac.h',
       'public/common/injection_test_win.h',
       'public/common/javascript_message_type.h',
+      'public/common/manifest.cc',
+      'public/common/manifest.h',
       'public/common/main_function_params.h',
       'public/common/media_stream_request.cc',
       'public/common/media_stream_request.h',
       'public/common/menu_item.cc',
       'public/common/menu_item.h',
       'public/common/page_state.cc',
       'public/common/page_state.h',
       'public/common/page_transition_types.cc',
       'public/common/page_transition_types.h',
       'public/common/page_transition_types_list.h',
@@ skipping 822 matching lines @@
       ],
       'sources': [
         'common/gpu/client/gpu_memory_buffer_impl_ozone.cc',
       ],
       'sources!': [
         'common/gpu/client/gpu_memory_buffer_impl_linux.cc',
       ],
     }],
   ],
 }