Add VP9 decode support to the remoting client.

remoting/protocol/session_config.h

 // 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.
 
 #ifndef REMOTING_PROTOCOL_SESSION_CONFIG_H_
 #define REMOTING_PROTOCOL_SESSION_CONFIG_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 14 matching lines @@
     TRANSPORT_MUX_STREAM,
     TRANSPORT_DATAGRAM,
     TRANSPORT_NONE,
   };
 
   enum Codec {
     CODEC_UNDEFINED,  // Used for event and control channels.
     CODEC_VERBATIM,
     CODEC_ZIP,
     CODEC_VP8,
+    CODEC_VP9,
     CODEC_OPUS,
     CODEC_SPEEX,
   };
 
   // Creates a config with transport field set to TRANSPORT_NONE which indicates
   // that corresponding channel is disabled.
   static ChannelConfig None();
 
   // Default constructor. Equivalent to None().
   ChannelConfig();
@@ skipping 105 matching lines @@
   // or undefined (e.g. no configurations for a channel) then NULL is returned.
   bool GetFinalConfig(SessionConfig* result) const;
 
   scoped_ptr<CandidateSessionConfig> Clone() const;
 
   static scoped_ptr<CandidateSessionConfig> CreateEmpty();
   static scoped_ptr<CandidateSessionConfig> CreateFrom(
       const SessionConfig& config);
   static scoped_ptr<CandidateSessionConfig> CreateDefault();
 
-  // Helper method that modifies |config| to disable audio support.
+  // Modifies |config| to disable specific features.
   static void DisableAudioChannel(CandidateSessionConfig* config);
+  static void DisableVideoCodec(CandidateSessionConfig* config,
+                                ChannelConfig::Codec codec);
 
  private:
   CandidateSessionConfig();
   explicit CandidateSessionConfig(const CandidateSessionConfig& config);
   CandidateSessionConfig& operator=(const CandidateSessionConfig& b);
 
   static bool SelectCommonChannelConfig(
       const std::vector<ChannelConfig>& host_configs_,
       const std::vector<ChannelConfig>& client_configs_,
       ChannelConfig* config);
   static bool IsChannelConfigSupported(const std::vector<ChannelConfig>& vector,
                                        const ChannelConfig& value);
 
   std::vector<ChannelConfig> control_configs_;
   std::vector<ChannelConfig> event_configs_;
   std::vector<ChannelConfig> video_configs_;
   std::vector<ChannelConfig> audio_configs_;
 };
 
 }  // namespace protocol
 }  // namespace remoting
 
 #endif  // REMOTING_PROTOCOL_SESSION_CONFIG_H_