ui: No need to typedef testing::Test in unittests.

ui/base/keycodes/keyboard_code_conversion_mac.mm

 // 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.
 
 #import "ui/base/keycodes/keyboard_code_conversion_mac.h"
 
 #include <algorithm>
+
 #import <Carbon/Carbon.h>
 
 #include "base/logging.h"
 
 namespace ui {
 
 namespace {
 
 // A struct to hold a Windows keycode to Mac virtual keycode mapping.
 struct KeyCodeMap {
@@ skipping 422 matching lines @@
     /* 0x7E */ VKEY_UP, // Up Arrow
     /* 0x7F */ VKEY_UNKNOWN // n/a
   };
 
   if (keyCode >= 0x80)
     return VKEY_UNKNOWN;
 
   return kKeyboardCodes[keyCode];
 }
 
-}  // anonymous namespace
+}  // namespace
 
 int MacKeyCodeForWindowsKeyCode(KeyboardCode keycode,
                                 NSUInteger flags,
                                 unichar* character,
                                 unichar* characterIgnoringModifiers) {
   KeyCodeMap from;
   from.keycode = keycode;
 
   const KeyCodeMap* ptr = std::lower_bound(
       kKeyCodesMap, kKeyCodesMap + arraysize(kKeyCodesMap), from);
@@ skipping 87 matching lines @@
     characters = [event charactersIgnoringModifiers];
     if ([characters length] > 0)
       code = KeyboardCodeFromCharCode([characters characterAtIndex:0]);
     if (code)
       return code;
   }
   return KeyboardCodeFromKeyCode([event keyCode]);
 }
 
 }  // namespace ui