Rename (Host|Client)Message to Chromoting(Host|Client)Message.

remoting/base/encoder.h

Index: remoting/base/encoder.h
diff --git a/remoting/base/encoder.h b/remoting/base/encoder.h
index 0c1fd50f5583e64af4edc09b7cb1d85cd20155d0..4d2cf852309ab8fedf51eb3e6546ebb9383c226f 100644
--- a/remoting/base/encoder.h
+++ b/remoting/base/encoder.h
@@ -17,7 +17,6 @@ namespace media {
 namespace remoting {
 
 class CaptureData;
-class HostMessage;
 
 // A class to perform the task of encoding a continous stream of
 // images.
@@ -40,7 +39,8 @@ class Encoder {
   // of HostMessage to reduce the amount of memory copies.
   // The callback takes ownership of the HostMessage and is responsible for
   // deleting it.
-  typedef Callback2<HostMessage*, EncodingState>::Type DataAvailableCallback;
+  typedef Callback2<ChromotingHostMessage*,
+                    EncodingState>::Type DataAvailableCallback;
 
   virtual ~Encoder() {}