Add VideoPacket struct for video packets. Refactor Decode interface to use it.

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 832eb046f5eb90e0a5e37d579dfa27019c87b5fa..2c1585a350a9d63de75d9734fd42dc3fb734a463 100644
--- a/remoting/protocol/video_reader.cc
+++ b/remoting/protocol/video_reader.cc
@@ -19,7 +19,10 @@ VideoReader* VideoReader::Create(const SessionConfig* config) {
   if (video_config.transport == ChannelConfig::TRANSPORT_SRTP) {
     return new RtpVideoReader();
   } else if (video_config.transport == ChannelConfig::TRANSPORT_STREAM) {
-    return new ProtobufVideoReader();
+    if (video_config.codec == ChannelConfig::CODEC_ZIP)
+      return new ProtobufVideoReader(VideoPacketFormat::ENCODING_ZLIB);
+    else if (video_config.codec == ChannelConfig::CODEC_VERBATIM)
+      return new ProtobufVideoReader(VideoPacketFormat::ENCODING_VERBATIM);
   }
   return NULL;
 }