Add PP_VideoFrame, PPB_VideoReader, and PPB_VideoWriter APIs to Pepper.

ppapi/ppapi_sources.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.
 
 {
   'variables': {
     'c_source_files': [
       'c/pp_array_output.h',
       'c/pp_bool.h',
       'c/pp_completion_callback.h',
@@ skipping 181 matching lines @@
       'cpp/url_loader.cc',
       'cpp/url_loader.h',
       'cpp/url_request_info.cc',
       'cpp/url_request_info.h',
       'cpp/url_response_info.cc',
       'cpp/url_response_info.h',
       'cpp/var.cc',
       'cpp/var.h',
       'cpp/var_array_buffer.cc',
       'cpp/var_array_buffer.h',
+      'cpp/video_frame.cc',
+      'cpp/video_frame.h',
+      'cpp/video_reader.cc',
+      'cpp/video_reader.h',
+      'cpp/video_writer.cc',
+      'cpp/video_writer.h',
       'cpp/view.cc',
       'cpp/view.h',
       'cpp/websocket.cc',
       'cpp/websocket.h',
 
       # Dev interfaces.
       'cpp/dev/audio_input_dev.cc',
       'cpp/dev/audio_input_dev.h',
       'cpp/dev/buffer_dev.cc',
       'cpp/dev/buffer_dev.h',
@@ skipping 296 matching lines @@
       'tests/test_x509_certificate_private.h',
 
       # Deprecated test cases.
       'tests/test_instance_deprecated.cc',
       'tests/test_instance_deprecated.h',
       'tests/test_var_deprecated.cc',
       'tests/test_var_deprecated.h',
     ],
   },
 }