MacViews: Remove BrowserWindowUtils dependency from accelerator_utils_cocoa

chrome/browser/ui/cocoa/browser_window_utils.mm

Index: chrome/browser/ui/cocoa/browser_window_utils.mm
diff --git a/chrome/browser/ui/cocoa/browser_window_utils.mm b/chrome/browser/ui/cocoa/browser_window_utils.mm
index 83c73b50508a1126504df468c718d56bee16a806..60dd4d1f8827371fc63ecfb3f2469b5eef29e278 100644
--- a/chrome/browser/ui/cocoa/browser_window_utils.mm
+++ b/chrome/browser/ui/cocoa/browser_window_utils.mm
@@ -11,40 +11,11 @@
 #include "chrome/browser/global_keyboard_shortcuts_mac.h"
 #include "chrome/browser/ui/browser.h"
 #import "chrome/browser/ui/cocoa/chrome_event_processing_window.h"
-#import "chrome/browser/ui/cocoa/nsmenuitem_additions.h"
 #import "chrome/browser/ui/cocoa/tabs/tab_strip_controller.h"
 #include "content/public/browser/native_web_keyboard_event.h"
 
 using content::NativeWebKeyboardEvent;
 
-@interface MenuWalker : NSObject
-+ (NSMenuItem*)itemForKeyEquivalent:(NSEvent*)key
-                               menu:(NSMenu*)menu;
-@end
-
-@implementation MenuWalker
-+ (NSMenuItem*)itemForKeyEquivalent:(NSEvent*)key

[Robert Sesek, 2015/03/31 22:51:36]

(Why was this ever a class?)

[Andre, 2015/03/31 23:21:57]

It came from here: https://codereview.chromium.org/273032
No particular reason I think. It works almost equally well, I just didn't like
the unnecessary verbosity.

-                               menu:(NSMenu*)menu {
-  NSMenuItem* result = nil;
-
-  for (NSMenuItem* item in [menu itemArray]) {
-    NSMenu* submenu = [item submenu];
-    if (submenu) {
-      if (submenu != [NSApp servicesMenu])
-        result = [self itemForKeyEquivalent:key
-                                       menu:submenu];
-    } else if ([item cr_firesForKeyEventIfEnabled:key]) {
-      result = item;
-    }
-
-    if (result)
-      break;
-  }
-
-  return result;
-}
-@end
-
 @implementation BrowserWindowUtils
 + (BOOL)shouldHandleKeyboardEvent:(const NativeWebKeyboardEvent&)event {
   if (event.skip_in_browser || event.type == NativeWebKeyboardEvent::Char)
@@ -54,47 +25,7 @@ using content::NativeWebKeyboardEvent;
 }
 
 + (int)getCommandId:(const NativeWebKeyboardEvent&)event {
-  if ([event.os_event type] != NSKeyDown)
-    return -1;
-
-  // Look in menu.
-  NSMenuItem* item = [MenuWalker itemForKeyEquivalent:event.os_event
-                                                 menu:[NSApp mainMenu]];
-
-  if (item && [item action] == @selector(commandDispatch:) && [item tag] > 0)
-    return [item tag];
-
-  // "Close window" doesn't use the |commandDispatch:| mechanism. Menu items
-  // that do not correspond to IDC_ constants need no special treatment however,
-  // as they can't be blacklisted in
-  // |BrowserCommandController::IsReservedCommandOrKey()| anyhow.
-  if (item && [item action] == @selector(performClose:))
-    return IDC_CLOSE_WINDOW;
-
-  // "Exit" doesn't use the |commandDispatch:| mechanism either.
-  if (item && [item action] == @selector(terminate:))
-    return IDC_EXIT;
-
-  // Look in secondary keyboard shortcuts.
-  NSUInteger modifiers = [event.os_event modifierFlags];
-  const bool cmdKey = (modifiers & NSCommandKeyMask) != 0;
-  const bool shiftKey = (modifiers & NSShiftKeyMask) != 0;
-  const bool cntrlKey = (modifiers & NSControlKeyMask) != 0;
-  const bool optKey = (modifiers & NSAlternateKeyMask) != 0;
-  const int keyCode = [event.os_event keyCode];
-  const unichar keyChar = KeyCharacterForEvent(event.os_event);
-
-  int cmdNum = CommandForWindowKeyboardShortcut(
-      cmdKey, shiftKey, cntrlKey, optKey, keyCode, keyChar);
-  if (cmdNum != -1)
-    return cmdNum;
-
-  cmdNum = CommandForBrowserKeyboardShortcut(
-      cmdKey, shiftKey, cntrlKey, optKey, keyCode, keyChar);
-  if (cmdNum != -1)
-    return cmdNum;
-
-  return -1;
+  return CommandForKeyEvent(event.os_event);
 }
 
 + (BOOL)handleKeyboardEvent:(NSEvent*)event