Android: cleanup jni_android to minimize external dependencies.

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': [
     'browser/speech/proto/speech_proto.gyp:speech_proto',
     '../base/base.gyp:base_static',
     '../crypto/crypto.gyp:crypto',
     '../google_apis/google_apis.gyp:google_apis',
@@ skipping 854 matching lines @@
     'browser/renderer_host/java/java_bridge_channel_host.cc',
     'browser/renderer_host/java/java_bridge_channel_host.h',
     'browser/renderer_host/java/java_bridge_dispatcher_host.cc',
     'browser/renderer_host/java/java_bridge_dispatcher_host.h',
     'browser/renderer_host/java/java_bridge_dispatcher_host_manager.cc',
     'browser/renderer_host/java/java_bridge_dispatcher_host_manager.h',
     'browser/renderer_host/java/java_method.cc',
     'browser/renderer_host/java/java_method.h',
     'browser/renderer_host/java/java_type.cc',
     'browser/renderer_host/java/java_type.h',
+    'browser/renderer_host/java/jni_helper.cc',
+    'browser/renderer_host/java/jni_helper.h',
     'browser/renderer_host/media/audio_input_device_manager.cc',
     'browser/renderer_host/media/audio_input_device_manager.h',
     'browser/renderer_host/media/audio_input_renderer_host.cc',
     'browser/renderer_host/media/audio_input_renderer_host.h',
     'browser/renderer_host/media/audio_input_sync_writer.cc',
     'browser/renderer_host/media/audio_input_sync_writer.h',
     'browser/renderer_host/media/audio_mirroring_manager.cc',
     'browser/renderer_host/media/audio_mirroring_manager.h',
     'browser/renderer_host/media/audio_renderer_host.cc',
     'browser/renderer_host/media/audio_renderer_host.h',
@@ skipping 673 matching lines @@
         '../third_party/speex/speex.gyp:libspeex',
       ],
     }],
     ['linux_use_libgps==1', {
       'dependencies': [
         '../build/linux/system.gyp:libgps',
       ],
     }],
   ],
 }