chrome/browser should build on the x86_64 architecture

chrome/browser/chrome_browser_application_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 "chrome/browser/chrome_browser_application_mac.h"
 
 #import "base/auto_reset.h"
 #import "base/logging.h"
 #include "base/mac/crash_logging.h"
 #import "base/mac/scoped_nsexception_enabler.h"
@@ skipping 371 matching lines @@
     if (tag == 0 || tag == -1) {
       tag = [sender selectedTag];
     }
   } else if ([sender isKindOfClass:[NSMenuItem class]]) {
     tag = [sender tag];
   }
 
   NSString* actionString = NSStringFromSelector(anAction);
   NSString* value =
         [NSString stringWithFormat:@"%@ tag %d sending %@ to %p",
-                  [sender className], tag, actionString, aTarget];
+                  [sender className],
+                  static_cast<int32_t>(tag),

[Mark Mentovai, 2012/08/20 13:25:58]

The correct way to deal with NSInteger is a cast to long (and a format switch to
%ld). Similarly, NSUInteger is dealt with by a cast to unsigned long and %lu.
See
https://developer.apple.com/library/mac/#documentation/Cocoa/Conceptual/Strin...
.

+                  actionString,
+                  aTarget];
 
   base::mac::ScopedCrashKey key(kActionKey, value);
 
   // Certain third-party code, such as print drivers, can still throw
   // exceptions and Chromium cannot fix them.  This provides a way to
   // work around those on a spot basis.
   bool enableNSExceptions = false;
 
   // http://crbug.com/80686 , an Epson printer driver.
   if (anAction == @selector(selectPDE:)) {
@@ skipping 168 matching lines @@
   std::vector<NSWindow*>::iterator window_iterator =
       std::find(previousKeyWindows_.begin(),
                 previousKeyWindows_.end(),
                 window);
   if (window_iterator != previousKeyWindows_.end()) {
     previousKeyWindows_.erase(window_iterator);
   }
 }
 
 @end