Add a macutil for the main app bundle and override...

base/mac_util.mm

 // Copyright (c) 2008 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 "base/mac_util.h"
 
 #include <Carbon/Carbon.h>
 #import <Cocoa/Cocoa.h>
-
+#include "base/file_path.h"

[Mark Mentovai, 2009/03/03 16:21:45]

Leave the blank line between system and chrome headers.

+#include "base/logging.h"
 #include "base/scoped_cftyperef.h"
+#include "base/sys_string_conversions.h"
 
 namespace mac_util {
 
 std::string PathFromFSRef(const FSRef& ref) {
   scoped_cftyperef<CFURLRef> url(
       CFURLCreateFromFSRef(kCFAllocatorDefault, &ref));
   NSString *path_string = [(NSURL *)url.get() path];
   return [path_string fileSystemRepresentation];
 }
 
@@ skipping 13 matching lines @@
 
   FSCatalogInfo info;
   if (FSGetCatalogInfo(&fsref, kFSCatInfoNodeFlags, &info,
                        NULL, NULL, NULL) != noErr) {
     return false;
   }
 
   return info.nodeFlags & kFSNodeIsDirectoryMask;
 }
 
+// No threading worries since NSBundle isn't thread safe.
+static NSBundle* g_override_app_bundle = nil;
+
+NSBundle* MainAppBundle() {
+  if (g_override_app_bundle)
+    return g_override_app_bundle;
+  return [NSBundle mainBundle];
+}
+
+void SetOverrideAppBundle(NSBundle* bundle) {
+  [g_override_app_bundle release];
+  g_override_app_bundle = [bundle retain];
+}
+
+void SetOverrideAppBundlePath(const FilePath& file_path) {
+  NSString* path = base::SysUTF8ToNSString(file_path.value());
+  NSBundle* bundle = [NSBundle bundleWithPath:path];
+  DCHECK(bundle) << "failed to load the bundle: " << file_path.value();
+
+  SetOverrideAppBundle(bundle);
+}
+
 }  // namespace mac_util