Change default ink drop center points to center of contents bounds

ui/views/view.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef UI_VIEWS_VIEW_H_
 #define UI_VIEWS_VIEW_H_
 
 #include <stddef.h>
 
 #include <algorithm>
@@ skipping 360 matching lines @@
 
   // Given a rectangle specified in this View's coordinate system, the function
   // computes the 'left' value for the mirrored rectangle within this View. If
   // the View's UI layout is not right-to-left, then bounds.x() is returned.
   //
   // UI mirroring is transparent to most View subclasses and therefore there is
   // no need to call this routine from anywhere within your subclass
   // implementation.
   int GetMirroredXForRect(const gfx::Rect& rect) const;
 
+  // Given a rectangle specified in this View's coordinate system, the function
+  // computes the mirrored rectangle.
+  gfx::Rect GetMirroredRect(const gfx::Rect& rect) const;
+
   // Given the X coordinate of a point inside the View, this function returns
   // the mirrored X coordinate of the point if the View's UI layout is
   // right-to-left. If the layout is left-to-right, the same X coordinate is
   // returned.
   //
   // Following are a few examples of the values returned by this function for
   // a View with the bounds {0, 0, 100, 100} and a right-to-left layout:
   //
   // GetMirroredXCoordinateInView(0) -> 100
   // GetMirroredXCoordinateInView(20) -> 80
@@ skipping 1317 matching lines @@
   // Observers -------------------------------------------------------------
 
   base::ObserverList<ViewObserver> observers_;
 
   DISALLOW_COPY_AND_ASSIGN(View);
 };
 
 }  // namespace views
 
 #endif  // UI_VIEWS_VIEW_H_