pepper: Use the RenderThread's shared context as the parent context.

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': [
     '../jingle/jingle.gyp:jingle_glue',
     '../net/net.gyp:net',
     '../skia/skia.gyp:skia',
     '../third_party/hyphen/hyphen.gyp:hyphen',
@@ skipping 176 matching lines @@
     'renderer/pepper/pepper_file_io_host.cc',
     'renderer/pepper/pepper_file_io_host.h',
     'renderer/pepper/pepper_graphics_2d_host.cc',
     'renderer/pepper/pepper_graphics_2d_host.h',
     'renderer/pepper/pepper_hung_plugin_filter.cc',
     'renderer/pepper/pepper_hung_plugin_filter.h',
     'renderer/pepper/pepper_in_process_resource_creation.cc',
     'renderer/pepper/pepper_in_process_resource_creation.h',
     'renderer/pepper/pepper_in_process_router.cc',
     'renderer/pepper/pepper_in_process_router.h',
-    'renderer/pepper/pepper_parent_context_provider.cc',
-    'renderer/pepper/pepper_parent_context_provider.h',
     'renderer/pepper/pepper_platform_audio_input_impl.cc',
     'renderer/pepper/pepper_platform_audio_input_impl.h',
     'renderer/pepper/pepper_platform_audio_output_impl.cc',
     'renderer/pepper/pepper_platform_audio_output_impl.h',
     'renderer/pepper/pepper_platform_context_3d_impl.cc',
     'renderer/pepper/pepper_platform_context_3d_impl.h',
     'renderer/pepper/pepper_platform_image_2d_impl.cc',
     'renderer/pepper/pepper_platform_image_2d_impl.h',
     'renderer/pepper/pepper_platform_video_capture_impl.cc',
     'renderer/pepper/pepper_platform_video_capture_impl.h',
@@ skipping 205 matching lines @@
     }],
   ],
   'target_conditions': [
     ['OS=="android"', {
       'sources/': [
         ['include', '^renderer/render_view_linux\\.cc$'],
       ],
     }],
   ],
 }