[Mac] Fixes a bug where an ExtensionPopupController object's pointer was neve...

chrome/browser/cocoa/location_bar_view_mac.h

Index: chrome/browser/cocoa/location_bar_view_mac.h
===================================================================
--- chrome/browser/cocoa/location_bar_view_mac.h	(revision 35091)
+++ chrome/browser/cocoa/location_bar_view_mac.h	(working copy)
@@ -200,6 +200,7 @@
     PageActionImageView() : owner_(NULL),
                             profile_(NULL),
                             page_action_(NULL),
+                            popup_controller_(nil),
                             tracker_(NULL),
                             current_tab_id_(-1),
                             preview_enabled_(false) {}
@@ -226,7 +227,7 @@
     PageActionMap page_action_icons_;
 
     // The controller for the popup displayed if a page action has one. Weak.
-    ExtensionPopupController* popupController_;
+    ExtensionPopupController* popup_controller_;
 
     // The object that is waiting for the image loading to complete
     // asynchronously.