Add android download controller.

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/debugger/devtools_resources.gyp:devtools_resources',
     'browser/speech/proto/speech_proto.gyp:speech_proto',
     '../base/base.gyp:base_static',
     '../crypto/crypto.gyp:crypto',
@@ skipping 170 matching lines @@
     'browser/accessibility/browser_accessibility_manager_win.cc',
     'browser/accessibility/browser_accessibility_manager_win.h',
     'browser/accessibility/browser_accessibility_state_impl.cc',
     'browser/accessibility/browser_accessibility_state_impl.h',
     'browser/accessibility/browser_accessibility_win.cc',
     'browser/accessibility/browser_accessibility_win.h',
     'browser/android/command_line.cc',
     'browser/android/command_line.h',
     'browser/android/content_jni_registrar.cc',
     'browser/android/content_jni_registrar.h',
+    'browser/android/download_controller.cc',
+    'browser/android/download_controller.h',
     'browser/android/jni_helper.cc',
     'browser/android/jni_helper.h',
     'browser/android/library_loader_hooks.cc',
     'browser/android/trace_event_binding.cc',
     'browser/android/trace_event_binding.h',
     'browser/appcache/appcache_dispatcher_host.cc',
     'browser/appcache/appcache_dispatcher_host.h',
     'browser/appcache/appcache_frontend_proxy.cc',
     'browser/appcache/appcache_frontend_proxy.h',
     'browser/appcache/chrome_appcache_service.cc',
@@ skipping 761 matching lines @@
       ],
     }],
     ['input_speech==0', {
       'sources/': [
         ['exclude', '^browser/speech/'],
       ],
     }],
   ],
 }