Implement software fallback for PPB_VideoDecoder.

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_codecs.h',
@@ skipping 485 matching lines @@
       'tests/test_uma.h',
       'tests/test_url_loader.cc',
       'tests/test_url_loader.h',
       'tests/test_url_request.cc',
       'tests/test_url_request.h',
       'tests/test_utils.cc',
       'tests/test_var.cc',
       'tests/test_var.h',
       'tests/test_var_resource.cc',
       'tests/test_var_resource.h',
+      'tests/test_video_decoder.cc',
+      'tests/test_video_decoder.h',
       'tests/test_video_destination.cc',
       'tests/test_video_destination.h',
       'tests/test_video_source.cc',
       'tests/test_video_source.h',
       'tests/test_view.cc',
       'tests/test_view.h',
       'tests/test_websocket.cc',
       'tests/test_websocket.h',
       'tests/testing_instance.cc',
       'tests/testing_instance.h',
@@ skipping 58 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',
     ],
   },
 }