Mac. Make command key combinations close bookmark folder menus.

BUG=87941
TEST=On Mac, click on a bookmark folder in the bar to open the menu, verify the menu closes when you hit cmd-T to open a new tab.
Review URL: http://codereview.chromium.org/7316004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@91593 0039d316-1c4b-4281-b951-d872f2087c98

chrome/browser/ui/cocoa/bookmarks/bookmark_bar_controller.mm

@@ -1803,19 +1803,19 @@ - (BOOL)isEventAnExitEvent:(NSEvent*)event {
       }
       break;
     case NSKeyDown: {
-      bool result = NO;
       // Event hooks often see the same keydown event twice due to the way key
       // events get dispatched and redispatched, so ignore if this keydown
       // event has the EXACT same timestamp as the previous keydown.
       static NSTimeInterval lastKeyDownEventTime;
       NSTimeInterval thisTime = [event timestamp];
       if (lastKeyDownEventTime != thisTime) {
         lastKeyDownEventTime = thisTime;
-        if (folderController_) {
-          result = [folderController_ handleInputText:[event characters]];
-        }
+        if ([event modifierFlags] & NSCommandKeyMask)
+          return YES;
+        else if (folderController_)
+          return [folderController_ handleInputText:[event characters]];
       }
-      return result;
+      return NO;
     }
     case NSKeyUp:
       return NO;