Disambiguate OnMouseCaptureLost from OnMouseReleased, etc.

views/controls/scrollbar/bitmap_scroll_bar.h

 // Copyright (c) 2011 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 VIEWS_CONTROLS_SCROLLBAR_BITMAP_SCROLL_BAR_H_
 #define VIEWS_CONTROLS_SCROLLBAR_BITMAP_SCROLL_BAR_H_
 #pragma once
 
 #include "views/controls/button/image_button.h"
 #include "views/controls/menu/menu.h"
@@ skipping 80 matching lines @@
   // thumb rather than the top.
   void ScrollToThumbPosition(int thumb_position, bool scroll_to_middle);
 
   // Scroll the contents by the specified offset (contents coordinates).
   void ScrollByContentsOffset(int contents_offset);
 
   // View overrides:
   virtual gfx::Size GetPreferredSize() OVERRIDE;
   virtual void Layout() OVERRIDE;
   virtual bool OnMousePressed(const MouseEvent& event) OVERRIDE;
-  virtual void OnMouseReleased(const MouseEvent& event, bool canceled) OVERRIDE;
+  virtual void OnMouseReleased(const MouseEvent& event) OVERRIDE;
+  virtual void OnMouseCaptureLost() OVERRIDE;
   virtual bool OnKeyPressed(const KeyEvent& event) OVERRIDE;
   virtual bool OnMouseWheel(const MouseWheelEvent& event) OVERRIDE;
 
   // BaseButton::ButtonListener overrides:
   virtual void ButtonPressed(Button* sender,
                              const views::Event& event) OVERRIDE;
 
   // ScrollBar overrides:
   virtual void Update(int viewport_size,
                       int content_size,
@@ skipping 75 matching lines @@
 
   // True if the scroll buttons at each end of the scroll bar should be shown.
   bool show_scroll_buttons_;
 
   DISALLOW_COPY_AND_ASSIGN(BitmapScrollBar);
 };
 
 }  // namespace views
 
 #endif  // VIEWS_CONTROLS_SCROLLBAR_BITMAP_SCROLL_BAR_H_