Dismiss the multi window resizer when the user clicks outside of the resizer

ui/views/mouse_watcher.h

Index: ui/views/mouse_watcher.h
diff --git a/ui/views/mouse_watcher.h b/ui/views/mouse_watcher.h
index 9327fe64995ca559d03fb8be6950b6858f6db7be..8907687296720ecc894a71d197ff0835358f00c8 100644
--- a/ui/views/mouse_watcher.h
+++ b/ui/views/mouse_watcher.h
@@ -29,14 +29,11 @@ class VIEWS_EXPORT MouseWatcherListener {
 // The MouseWatcherHost determines what region is to be monitored.
 class VIEWS_EXPORT MouseWatcherHost {
  public:
-  // The MouseEventType can be used as a hint.
+  // The type of mouse event.
   enum MouseEventType {
-    // The mouse moved within the window which was current when the MouseWatcher
-    // was created.
     MOUSE_MOVE,
-    // The mouse moved exited the window which was current when the MouseWatcher
-    // was created.
-    MOUSE_EXIT
+    MOUSE_EXIT,
+    MOUSE_PRESS
   };
 
   virtual ~MouseWatcherHost();