mus: Server-side implementation of modal windows

components/mus/ws/display.h

Index: components/mus/ws/display.h
diff --git a/components/mus/ws/display.h b/components/mus/ws/display.h
index 69cfb9ef99dee678807d387332e1c2fd524739ef..79b44b8bf186f3c267b149cead99fec8508bf8d7 100644
--- a/components/mus/ws/display.h
+++ b/components/mus/ws/display.h
@@ -120,7 +120,8 @@ class Display : public PlatformDisplayDelegate,
     return window_manager_state_map_.size();
   }
 
-  void SetCapture(ServerWindow* window, bool in_nonclient_area);
+  bool SetCapture(ServerWindow* window, bool in_nonclient_area);
+  void ReleaseCaptureForModalWindow(ServerWindow* window);

[sky, 2016/03/08 17:07:53]

It isn't particularly clear what this does from the name. Please add a
description.

[mohsen, 2016/03/09 08:26:48]

Done. Also, renamed the function as I needed to add another function with
similar functionality.

 
   void SetFocusedWindow(ServerWindow* window);
   ServerWindow* GetFocusedWindow();