Remove legacy version of the control channel protocol.

All current versions of host and client support capabilities, we
no longer need to keep support for older versions.

Review URL: https://codereview.chromium.org/565263006

Cr-Commit-Position: refs/heads/master@{#294752}

1 files changed, 0 insertions, 11 deletions

diff --git a/remoting/protocol/session_config.cc b/remoting/protocol/session_config.cc
index 3f2c911..0693627 100644
--- a/remoting/protocol/session_config.cc
+++ b/remoting/protocol/session_config.cc
@@ -10,10 +10,7 @@ namespace remoting {
 namespace protocol {
 
 const int kDefaultStreamVersion = 2;
-
-// The control channel version that supports the "capabilities" message.
 const int kControlStreamVersion = 3;
-const int kControlStreamVersionNoCapabilities = kDefaultStreamVersion;
 
 ChannelConfig ChannelConfig::None() {
   return ChannelConfig();
@@ -41,10 +38,6 @@ bool ChannelConfig::operator==(const ChannelConfig& b) const {
 SessionConfig::SessionConfig() {
 }
 
-bool SessionConfig::SupportsCapabilities() const {
-  return control_config_.version >= kControlStreamVersion;
-}
-
 // static
 SessionConfig SessionConfig::ForTest() {
   SessionConfig result;
@@ -180,10 +173,6 @@ scoped_ptr<CandidateSessionConfig> CandidateSessionConfig::CreateDefault() {
       ChannelConfig(ChannelConfig::TRANSPORT_MUX_STREAM,
                     kControlStreamVersion,
                     ChannelConfig::CODEC_UNDEFINED));
-  result->mutable_control_configs()->push_back(
-      ChannelConfig(ChannelConfig::TRANSPORT_MUX_STREAM,
-                    kControlStreamVersionNoCapabilities,
-                    ChannelConfig::CODEC_UNDEFINED));
 
   // Event channel.
   result->mutable_event_configs()->push_back(