Convert the AutocompletePopupPositioner into a BubblePositioner in preparatio...

chrome/browser/views/bubble_border.h

 // Copyright (c) 2009 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 CHROME_BROWSER_VIEWS_BUBBLE_BORDER_H_
 #define CHROME_BROWSER_VIEWS_BUBBLE_BORDER_H_
 
 #include "third_party/skia/include/core/SkColor.h"
 #include "views/border.h"
 
 class SkBitmap;
 
 // Renders a round-rect border and a custom dropshadow.  This can be used to
 // produce floating "bubble" objects.
 class BubbleBorder : public views::Border {
  public:
   BubbleBorder() {
     InitClass();
   }
 
   // Returns the radius of the corner of the border.
   static int GetCornerRadius() {
     // We can't safely calculate a border radius by comparing the sizes of the
     // side and corner images, because either may have been extended in various
     // directions in order to do more subtle dropshadow fading or other effects.
     // So we hardcode the most accurate value.
     return 4;
   }
 
+  // Gives the desired bounds (in screen coordinates) given the rect to position
+  // relative to and the size of the contained contents.  The contents are
+  // centered underneath the supplied rect.
+  gfx::Rect GetBounds(const gfx::Rect& position_relative_to,
+                      const gfx::Size& contents_size) const;
+
   // Overridden from views::Border:
   virtual void GetInsets(gfx::Insets* insets) const;
 
  private:
   // Loads images if necessary.
   static void InitClass();
 
   virtual ~BubbleBorder() { }
 
   // Overridden from views::Border:
   virtual void Paint(const views::View& view, gfx::Canvas* canvas) const;
 
   // Border graphics.
   static SkBitmap* left_;
   static SkBitmap* top_left_;
   static SkBitmap* top_;
   static SkBitmap* top_right_;
   static SkBitmap* right_;
   static SkBitmap* bottom_right_;
   static SkBitmap* bottom_;
   static SkBitmap* bottom_left_;
 
   DISALLOW_COPY_AND_ASSIGN(BubbleBorder);
 };
 
 #endif  // #ifndef CHROME_BROWSER_VIEWS_BUBBLE_BORDER_H_