Remove SW rendering path code from BrowserPlugin.

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': [
     'content_common_mojo_bindings',
     '../gin/gin.gyp:gin',
     '../jingle/jingle.gyp:jingle_glue',
     '../media/media.gyp:media',
@@ skipping 75 matching lines @@
     'renderer/android/content_detector.cc',
     'renderer/android/content_detector.h',
     'renderer/android/email_detector.cc',
     'renderer/android/email_detector.h',
     'renderer/android/phone_number_detector.cc',
     'renderer/android/phone_number_detector.h',
     'renderer/android/synchronous_compositor_factory.cc',
     'renderer/android/synchronous_compositor_factory.h',
     'renderer/browser_plugin/browser_plugin.cc',
     'renderer/browser_plugin/browser_plugin.h',
-    'renderer/browser_plugin/browser_plugin_backing_store.cc',
-    'renderer/browser_plugin/browser_plugin_backing_store.h',
     'renderer/browser_plugin/browser_plugin_bindings.cc',
     'renderer/browser_plugin/browser_plugin_bindings.h',
     'renderer/browser_plugin/browser_plugin_manager_factory.h',
     'renderer/browser_plugin/browser_plugin_manager_impl.cc',
     'renderer/browser_plugin/browser_plugin_manager_impl.h',
     'renderer/browser_plugin/browser_plugin_manager.cc',
     'renderer/browser_plugin/browser_plugin_manager.h',
     'renderer/clipboard_utils.cc',
     'renderer/clipboard_utils.h',
     'renderer/child_frame_compositing_helper.cc',
@@ skipping 675 matching lines @@
     }],
   ],
   'target_conditions': [
     ['OS=="android"', {
       'sources/': [
         ['include', '^renderer/render_view_linux\\.cc$'],
       ],
     }],
   ],
 }