Adds popups to browser actions, completing the feature....

chrome/browser/cocoa/info_bubble_view.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_COCOA_INFO_BUBBLE_VIEW_H_
+#define CHROME_BROWSER_COCOA_INFO_BUBBLE_VIEW_H_
+
 #import <Cocoa/Cocoa.h>
 
+extern const CGFloat kBubbleArrowHeight;
+extern const CGFloat kBubbleArrowWidth;
+extern const CGFloat kBubbleArrowXOffset;
+extern const CGFloat kBubbleCornerRadius;
+
 enum BubbleArrowLocation {
   kTopLeft,
   kTopRight,
 };
 
+enum InfoBubbleType {
+  kGradientInfoBubble,
+  kWhiteInfoBubble
+};
+
 // Content view for a bubble with an arrow showing arbitrary content.
 // This is where nonrectangular drawing happens.
 @interface InfoBubbleView : NSView {
  @private
   BubbleArrowLocation arrowLocation_;
+
+  // The type simply is used to determine what sort of background it should
+  // draw.
+  InfoBubbleType bubbleType_;
 }
 
 @property (assign, nonatomic) BubbleArrowLocation arrowLocation;
+@property (assign, nonatomic) InfoBubbleType bubbleType;
 
 @end
+
+#endif  // CHROME_BROWSER_COCOA_INFO_BUBBLE_VIEW_H_