Add VP9 decode support to the remoting client.

remoting/protocol/video_reader.cc

Index: remoting/protocol/video_reader.cc
diff --git a/remoting/protocol/video_reader.cc b/remoting/protocol/video_reader.cc
index 8fd3afe5eb53dccd5deab9ebdc0d07b16b3b41b3..0dfa10ac02157f73661d5af103456fd40d224360 100644
--- a/remoting/protocol/video_reader.cc
+++ b/remoting/protocol/video_reader.cc
@@ -19,6 +19,9 @@ scoped_ptr<VideoReader> VideoReader::Create(const SessionConfig& config) {
     if (video_config.codec == ChannelConfig::CODEC_VP8) {
       return scoped_ptr<VideoReader>(
           new ProtobufVideoReader(VideoPacketFormat::ENCODING_VP8));
+    } else if (video_config.codec == ChannelConfig::CODEC_VP9) {
+      return scoped_ptr<VideoReader>(
+          new ProtobufVideoReader(VideoPacketFormat::ENCODING_VP9));
     } else if (video_config.codec == ChannelConfig::CODEC_ZIP) {
       return scoped_ptr<VideoReader>(
           new ProtobufVideoReader(VideoPacketFormat::ENCODING_ZLIB));