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

remoting/host/session_controller.h

Index: remoting/host/session_controller.h
diff --git a/remoting/host/session_controller.h b/remoting/host/session_controller.h
index 46fff8ddbdae29ccc4d85ae526d85ed5af60be3e..e29067ac0fc1be7b5138d98204293cbfe231576c 100644
--- a/remoting/host/session_controller.h
+++ b/remoting/host/session_controller.h
@@ -11,13 +11,14 @@
 
 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