Mac: First run bubble.

chrome/browser/cocoa/content_blocked_bubble_controller.h

Index: chrome/browser/cocoa/content_blocked_bubble_controller.h
diff --git a/chrome/browser/cocoa/content_blocked_bubble_controller.h b/chrome/browser/cocoa/content_blocked_bubble_controller.h
index 669c437cfca32a08d773c34eb7241bb443b58911..6bb7c90d52650113a40c9ddeda072c43f9ef503f 100644
--- a/chrome/browser/cocoa/content_blocked_bubble_controller.h
+++ b/chrome/browser/cocoa/content_blocked_bubble_controller.h
@@ -10,6 +10,7 @@
 #import "base/cocoa_protocols_mac.h"
 #include "base/scoped_nsobject.h"
 #include "base/scoped_ptr.h"
+#import "chrome/browser/cocoa/base_bubble_controller.h"
 
 class ContentSettingBubbleModel;
 @class InfoBubbleView;
@@ -21,13 +22,8 @@ typedef std::map<NSButton*, int> PopupLinks;
 }
 
 // Manages a "content blocked" bubble.
-@interface ContentBlockedBubbleController
-    : NSWindowController<NSWindowDelegate> {
+@interface ContentBlockedBubbleController : BaseBubbleController {
  @private
-  NSWindow* parentWindow_;  // weak
-  NSPoint anchor_;
-  IBOutlet InfoBubbleView* bubble_;  // to set arrow position
-
   IBOutlet NSTextField* titleLabel_;
   IBOutlet NSMatrix* allowBlockRadioGroup_;