[Mac] Factor out keyboard shortcut handling from ChromeEventProcessingWindow.

chrome/browser/ui/cocoa/chrome_event_processing_window.h

 // Copyright (c) 2012 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.
 
 #ifndef CHROME_BROWSER_UI_COCOA_CHROME_EVENT_PROCESSING_WINDOW_H_
 #define CHROME_BROWSER_UI_COCOA_CHROME_EVENT_PROCESSING_WINDOW_H_
 
 #import <Cocoa/Cocoa.h>
 
+#import "base/mac/scoped_nsobject.h"
+#import "ui/base/cocoa/command_dispatcher.h"
 #import "ui/base/cocoa/underlay_opengl_hosting_window.h"
 
+@class ChromeCommandDispatcherDelegate;
+
 // Override NSWindow to access unhandled keyboard events (for command
 // processing); subclassing NSWindow is the only method to do
 // this.
-@interface ChromeEventProcessingWindow : UnderlayOpenGLHostingWindow {
+@interface ChromeEventProcessingWindow
+    : UnderlayOpenGLHostingWindow<CommandDispatchingWindow> {
  @private
-  BOOL redispatchingEvent_;
-  BOOL eventHandled_;
+  base::scoped_nsobject<CommandDispatcher> commandDispatcher_;

[Robert Sesek, 2015/08/27 23:25:23]

Hide these ivars too.

[jackhou1, 2015/08/28 01:00:47]

Done.

+  base::scoped_nsobject<ChromeCommandDispatcherDelegate>
+      commandDispatcherDelegate_;
 }
 
-// Sends a key event to |NSApp sendEvent:|, but also makes sure that it's not
-// short-circuited to the RWHV. This is used to send keyboard events to the menu
-// and the cmd-` handler if a keyboard event comes back unhandled from the
-// renderer. The event must be of type |NSKeyDown|, |NSKeyUp|, or
-// |NSFlagsChanged|.
-// Returns |YES| if |event| has been handled.
-- (BOOL)redispatchKeyEvent:(NSEvent*)event;
-
 // Checks if |event| is a window, delayed window, or browser keyboard shortcut.
 // (See global_keyboard_shortcuts_mac.h for details). If so, execute the
 // associated command. Returns YES if the event was handled.
 - (BOOL)handleExtraKeyboardShortcut:(NSEvent*)event;
 
-// Override, so we can handle global keyboard events.
-- (BOOL)performKeyEquivalent:(NSEvent*)theEvent;
-
 @end
 
 #endif  // CHROME_BROWSER_UI_COCOA_CHROME_EVENT_PROCESSING_WINDOW_H_