Fix hover state in wrench menu

chrome/browser/ui/cocoa/menu_button.mm

Index: chrome/browser/ui/cocoa/menu_button.mm
diff --git a/chrome/browser/ui/cocoa/menu_button.mm b/chrome/browser/ui/cocoa/menu_button.mm
index 07111ab8ad57f589bc7ade98bce9d152cd3c4c99..a49dbab0a59f7867127033d6a21a58cc5fab0d52 100644
--- a/chrome/browser/ui/cocoa/menu_button.mm
+++ b/chrome/browser/ui/cocoa/menu_button.mm
@@ -7,6 +7,7 @@
 #include "base/logging.h"
 #include "base/memory/scoped_nsobject.h"
 #import "chrome/browser/ui/cocoa/clickhold_button_cell.h"
+#import "chrome/browser/ui/cocoa/nsview_additions.h"
 
 @interface MenuButton (Private)
 - (void)showMenu:(BOOL)isDragging;
@@ -137,6 +138,15 @@
                             inView:self];
   [popUpCell_ performClickWithFrame:frame
                              inView:self];
+
+  // Once the menu is dismissed send a mouseExited event if necessary. If the
+  // menu action caused the super view to resize then we won't automatically
+  // get a mouseExited event so we need to do this manually.
+  // See http://crbug.com/82456
+  if (![self cr_isMouseInView]) {
+    if ([[self cell] respondsToSelector:@selector(mouseExited:)])
+      [[self cell] mouseExited:nil];
+  }
 }
 
 // Called when the button is clicked and released. (Shouldn't happen with