Switch to standard integer types in chrome/browser/ui/cocoa/.

chrome/browser/ui/cocoa/multi_key_equivalent_button.mm

 // 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.
 
+#include <stddef.h>
+
 #import "chrome/browser/ui/cocoa/multi_key_equivalent_button.h"
 
 @implementation MultiKeyEquivalentButton
 
 - (void)addKeyEquivalent:(KeyEquivalentAndModifierMask)key {
   extraKeys_.push_back(key);
 }
 
 - (BOOL)performKeyEquivalent:(NSEvent*)event {
   NSWindow* modalWindow = [NSApp modalWindow];
   NSWindow* window = [self window];
 
   if ([self isEnabled] &&
       (!modalWindow || modalWindow == window || [window worksWhenModal])) {
     for (size_t index = 0; index < extraKeys_.size(); ++index) {
       KeyEquivalentAndModifierMask key = extraKeys_[index];
       if (key.charCode &&
           [key.charCode isEqualToString:[event charactersIgnoringModifiers]] &&
           ([event modifierFlags] & key.mask) == key.mask) {
         [self performClick:self];
         return YES;
       }
     }
   }
 
   return [super performKeyEquivalent:event];
 }
 
 @end