MediaStreamRecorder: enable in Android (including linking libwebm)

content/content_renderer.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',
     '../base/third_party/dynamic_annotations/dynamic_annotations.gyp:dynamic_annotations',
     '../cc/cc.gyp:cc',
     '../cc/cc.gyp:cc_proto',
@@ skipping 783 matching lines @@
       ],
     }],
     ['OS=="win" and win_use_allocator_shim==1', {
       'dependencies': [
           '../base/allocator/allocator.gyp:allocator',
       ],
     }],
     ['OS=="android"', {
       'sources!': [
         'renderer/media/audio_decoder.cc',
-        'renderer/media/audio_track_recorder.cc',
-        'renderer/media/audio_track_recorder.h',
-        'renderer/media/media_recorder_handler.cc',
-        'renderer/media/media_recorder_handler.h',
-        'renderer/media/video_track_recorder.cc',
-        'renderer/media/video_track_recorder.h',
         'renderer/usb/type_converters.cc',
         'renderer/usb/type_converters.h',
         'renderer/usb/web_usb_client_impl.cc',
         'renderer/usb/web_usb_client_impl.h',
         'renderer/usb/web_usb_device_impl.cc',
         'renderer/usb/web_usb_device_impl.h',
       ],
       'sources': [
         'renderer/external_popup_menu.cc',
         'renderer/external_popup_menu.h',
@@ skipping 109 matching lines @@
     }],
   ],
   'target_conditions': [
     ['OS=="android"', {
       'sources/': [
         ['include', '^renderer/render_view_linux\\.cc$'],
       ],
     }],
   ],
 }