Makes windows scale slightly when dragging the caption. Also wired

ash/wm/window_resizer.h

Index: ash/wm/window_resizer.h
diff --git a/ash/wm/window_resizer.h b/ash/wm/window_resizer.h
index 777eff3a897e7c2c0323bc9b1b68fde24d3a7dbf..f34e46c1751dac342fd4753d94171db1e8aac040 100644
--- a/ash/wm/window_resizer.h
+++ b/ash/wm/window_resizer.h
@@ -52,7 +52,10 @@ class ASH_EXPORT WindowResizer {
   void Drag(const gfx::Point& location);
 
   // Invoked to complete the drag.
-  void CompleteDrag();
+  virtual void CompleteDrag();
+
+  // Reverts the drag.
+  virtual void RevertDrag();
 
   // Returns true if the drag will result in changing the window in anyway.
   bool is_resizable() const { return is_resizable_; }