[Mac] Enable click-drag-release behavior in the Wrench menu's custom items.

chrome/browser/cocoa/wrench_menu_controller.h

Index: chrome/browser/cocoa/wrench_menu_controller.h
diff --git a/chrome/browser/cocoa/wrench_menu_controller.h b/chrome/browser/cocoa/wrench_menu_controller.h
index 242848d756d733dbf04a5fdcba18238b96245ad6..fc6801c250a8d81a3e3acb8a17c82abf7544aa6f 100644
--- a/chrome/browser/cocoa/wrench_menu_controller.h
+++ b/chrome/browser/cocoa/wrench_menu_controller.h
@@ -11,6 +11,7 @@
 #import "base/cocoa_protocols_mac.h"
 #import "chrome/browser/cocoa/menu_controller.h"
 
+@class MenuTrackedRootView;
 @class ToolbarController;
 class WrenchMenuModel;
 
@@ -23,10 +24,12 @@ class WrenchMenuModel;
 // This object is instantiated in Toolbar.xib and is configured by the
 // ToolbarController.
 @interface WrenchMenuController : MenuController<NSMenuDelegate> {
-  IBOutlet NSView* editItem_;
-  IBOutlet NSSegmentedControl* editControl_;
+  IBOutlet MenuTrackedRootView* editItem_;
+  IBOutlet NSButton* editCut_;
+  IBOutlet NSButton* editCopy_;
+  IBOutlet NSButton* editPaste_;
 
-  IBOutlet NSView* zoomItem_;
+  IBOutlet MenuTrackedRootView* zoomItem_;
   IBOutlet NSButton* zoomPlus_;
   IBOutlet NSButton* zoomDisplay_;
   IBOutlet NSButton* zoomMinus_;