Reworked the plumbing required to pass the client resolution to the desktop resizer.

remoting/host/session_controller.h

 // Copyright (c) 2013 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_HOST_SESSION_CONTROLLER_H_
 #define REMOTING_HOST_SESSION_CONTROLLER_H_
 
 #include "base/basictypes.h"
 #include "third_party/skia/include/core/SkPoint.h"
 #include "third_party/skia/include/core/SkSize.h"
 
 namespace remoting {
 
+struct ScreenResolution;
+
 class SessionController {
  public:
   virtual ~SessionController() {}
 
-  // Called when the client view size or pixel density change.
-  virtual void OnClientResolutionChanged(const SkIPoint& client_dpi,
-                                         const SkISize& client_size) = 0;
+  // Attempts to set new screen resolution in the session.
+  virtual void SetScreenResolution(const ScreenResolution& resolution) = 0;
 };
 
 }  // namespace remoting
 
 #endif  // REMOTING_HOST_SESSION_CONTROLLER_H_