Support for interactive set-chrome-as-default in Windows.

chrome/browser/ui/cocoa/first_run_dialog.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/ui/cocoa/first_run_dialog.h"
 
 #include "base/bind.h"
 #include "base/mac/bundle_locations.h"
 #include "base/mac/mac_util.h"
 #include "base/memory/ref_counted.h"
@@ skipping 141 matching lines @@
 
 @synthesize statsEnabled = statsEnabled_;
 @synthesize makeDefaultBrowser = makeDefaultBrowser_;
 
 - (id)init {
   NSString* nibpath =
       [base::mac::FrameworkBundle() pathForResource:@"FirstRunDialog"
                                              ofType:@"nib"];
   if ((self = [super initWithWindowNibPath:nibpath owner:self])) {
     // Bound to the dialog checkboxes.
-    makeDefaultBrowser_ = ShellIntegration::CanSetAsDefaultBrowser();
+    makeDefaultBrowser_ = ShellIntegration::CanSetAsDefaultBrowser() !=
+        ShellIntegration::SET_DEFAULT_NOT_ALLOWED;
     statsEnabled_ = StatsCheckboxDefault();
   }
   return self;
 }
 
 - (void)dealloc {
   [super dealloc];
 }
 
 - (IBAction)showWindow:(id)sender {
@@ skipping 112 matching lines @@
   [NSApp stopModal];
 }
 
 - (IBAction)learnMore:(id)sender {
   NSString* urlStr = base::SysUTF8ToNSString(chrome::kLearnMoreReportingURL);
   NSURL* learnMoreUrl = [NSURL URLWithString:urlStr];
   [[NSWorkspace sharedWorkspace] openURL:learnMoreUrl];
 }
 
 @end