Cocoa: Support keyboard navigation in avatar menu

ui/base/test/cocoa_test_event_utils.h

 // 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.
 
 #ifndef UI_BASE_TEST_COCOA_TEST_EVENT_UTILS_H_
 #define UI_BASE_TEST_COCOA_TEST_EVENT_UTILS_H_
 #pragma once
 
 #include <utility>
 
@@ skipping 25 matching lines @@
 NSEvent* MouseEventAtPoint(NSPoint point, NSEventType type,
                            NSUInteger modifiers);
 NSEvent* LeftMouseDownAtPoint(NSPoint point);
 NSEvent* LeftMouseDownAtPointInWindow(NSPoint point, NSWindow* window);
 
 // Return a mouse down and an up event with the given |clickCount| at
 // |view|'s midpoint.
 std::pair<NSEvent*, NSEvent*> MouseClickInView(NSView* view,
                                                NSUInteger clickCount);
 
+// Returns a key event with the given character.
+NSEvent* KeyEventWithCharacter(unichar c);
+
 }  // namespace cocoa_test_event_utils
 
 #endif  // UI_BASE_TEST_COCOA_TEST_EVENT_UTILS_H_