Add a keyboard shortcut on Escape that emits the IDC_STOP command....

chrome/browser/cocoa/chrome_event_processing_window.h

 // Copyright (c) 2009 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_COCOA_CHROME_EVENT_PROCESSING_WINDOW_H_
 #define CHROME_BROWSER_COCOA_CHROME_EVENT_PROCESSING_WINDOW_H_
 
 #import <Cocoa/Cocoa.h>
 
 #include "base/scoped_nsobject.h"
@@ skipping 13 matching lines @@
 // renderer.
 // Returns |YES| if |event| has been handled.
 - (BOOL)redispatchEvent:(NSEvent*)event;
 
 // See global_keyboard_shortcuts_mac.h for details on the next two functions.
 
 // Checks if |event| is a window keyboard shortcut. If so, dispatches it to the
 // window controller's |executeCommand:| and returns |YES|.
 - (BOOL)handleExtraWindowKeyboardShortcut:(NSEvent*)event;
 
+// Checks if |event| is a delayed window keyboard shortcut. If so, dispatches
+// it to the window controller's |executeCommand:| and returns |YES|.
+- (BOOL)handleDelayedWindowKeyboardShortcut:(NSEvent*)event;
+
 // Checks if |event| is a browser keyboard shortcut. If so, dispatches it to the
 // window controller's |executeCommand:| and returns |YES|.
 - (BOOL)handleExtraBrowserKeyboardShortcut:(NSEvent*)event;
 
 // Override, so we can handle global keyboard events.
 - (BOOL)performKeyEquivalent:(NSEvent*)theEvent;
 
 @end
 
 #endif  // CHROME_BROWSER_COCOA_CHROME_EVENT_PROCESSING_WINDOW_H_