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

remoting/base/encoder_zlib.h

Index: remoting/base/encoder_zlib.h
diff --git a/remoting/base/encoder_zlib.h b/remoting/base/encoder_zlib.h
index 476135b71bbbcd8634441e9539daa4813208cc5a..0c88e7ecd550cb47a86fbde491e68331e0dc95df 100644
--- a/remoting/base/encoder_zlib.h
+++ b/remoting/base/encoder_zlib.h
@@ -31,12 +31,12 @@ class EncoderZlib : public Encoder {
   void EncodeRect(CompressorZlib* compressor, const gfx::Rect& rect,
                   size_t rect_index);
 
-  // Create a new HostMessage with the right flag and attributes. The message
-  // can be used immediately for output of encoding.
-  HostMessage* PrepareMessage(const gfx::Rect* rect);
+  // Create a new ChromotingHostMessage with the right flag and attributes.
+  // The message can be used immediately for output of encoding.
+  ChromotingHostMessage* PrepareMessage(const gfx::Rect* rect);
 
   // Submit |message| to |callback_|.
-  void SubmitMessage(HostMessage* message, size_t rect_index);
+  void SubmitMessage(ChromotingHostMessage* message, size_t rect_index);
 
   scoped_refptr<CaptureData> capture_data_;
   scoped_ptr<DataAvailableCallback> callback_;