Fix hover state in wrench menu

chrome/browser/ui/cocoa/menu_button.mm

 // Copyright (c) 2011 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.
 
 #import "chrome/browser/ui/cocoa/menu_button.h"
 
 #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;
 - (void)clickShowMenu:(id)sender;
 - (void)dragShowMenu:(id)sender;
 @end  // @interface MenuButton (Private)
 
 @implementation MenuButton
 
 @synthesize openMenuOnClick = openMenuOnClick_;
@@ skipping 110 matching lines @@
     popUpCell_.reset([[NSPopUpButtonCell alloc] initTextCell:@""
                                                    pullsDown:YES]);
   }
   DCHECK(popUpCell_.get());
   [popUpCell_ setMenu:[self attachedMenu]];
   [popUpCell_ selectItem:nil];
   [popUpCell_ attachPopUpWithFrame:frame
                             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
 // timeout of 0, though there may be some strange pointing devices out there.)
 - (void)clickShowMenu:(id)sender {
   // This should only be called if openMenuOnClick has been set (which hooks
   // up this target-action).
   DCHECK(openMenuOnClick_);
   [self showMenu:NO];
 }
 
 // Called when the button is clicked and dragged/held.
 - (void)dragShowMenu:(id)sender {
   // We shouldn't get here unless the menu is enabled.
   DCHECK([self attachedMenu]);
   [self showMenu:YES];
 }
 
 @end  // @implementation MenuButton (Private)