Rename ClientDimensions to ClientResolution and add pixel-size and DPI fields.

remoting/host/chromoting_host.h

Index: remoting/host/chromoting_host.h
diff --git a/remoting/host/chromoting_host.h b/remoting/host/chromoting_host.h
index 7e1a935398362b1c780192178941715b5ead0731..bfd4dca4105ab96f925fc02d2bd15f95e99aba08 100644
--- a/remoting/host/chromoting_host.h
+++ b/remoting/host/chromoting_host.h
@@ -125,8 +125,9 @@ class ChromotingHost : public base::RefCountedThreadSafe<ChromotingHost>,
       ClientSession* session,
       const std::string& channel_name,
       const protocol::TransportRoute& route) OVERRIDE;
-  virtual void OnClientDimensionsChanged(ClientSession* session,
-                                         const SkISize& size) OVERRIDE;
+  virtual void OnClientResolutionChanged(ClientSession* session,
+                                         const SkISize& size,
+                                         const SkIPoint& dpi) OVERRIDE;
 
   // SessionManager::Listener implementation.
   virtual void OnSessionManagerReady() OVERRIDE;