Stub classes for Chromoting and use them in HostMessageDispatcher.

remoting/proto/control.proto

Index: remoting/proto/control.proto
diff --git a/remoting/proto/control.proto b/remoting/proto/control.proto
index 99b5d373dfc5c8a5771449117b1dd7bbda60a61c..6e40658f77527e2a86e33e03bac92330d9256dc4 100644
--- a/remoting/proto/control.proto
+++ b/remoting/proto/control.proto
@@ -8,26 +8,21 @@ syntax = "proto2";
 
 option optimize_for = LITE_RUNTIME;
 
-package remoting;
+package remoting.protocol;
 
-message SuggestScreenResolutionRequest {
+// TODO(hclam): Isolate rectangle from these two messages.
+message SuggestResolutionRequest {
   required int32 width = 1;
   required int32 height = 2;
 };
 
-// Represents a control message that sent from the client to the host.
-// This message is transmitted on the control channel.
-message ClientControlMessage {
-  optional SuggestScreenResolutionRequest suggest_screen_resolution_request = 1;
-}
-
-message SetScreenResolutionRequest {
+message NotifyResolutionRequest {
   required int32 width = 1;
   required int32 height = 2;
 };
 
-// Represents a control message that sent from host to the client.
-// This message is transmitted on the control channel.
-message HostControlMessage {
-  optional SetScreenResolutionRequest set_screen_resolution_request = 1;
+// Represents a message being sent on the control channel.
+message ControlMessage {
+  optional SuggestResolutionRequest suggest_resolution = 1;
+  optional NotifyResolutionRequest notify_resolution = 2;
 }