Allow changing metrics reporting state without callback.

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/mac/bundle_locations.h"
 #import "base/mac/scoped_nsobject.h"
 #include "base/memory/ref_counted.h"
 #include "base/message_loop/message_loop.h"
@@ skipping 57 matching lines @@
   if (!IsMetricsReportingPolicyManaged()) {
     base::scoped_nsobject<FirstRunDialogController> dialog(
         [[FirstRunDialogController alloc] init]);
 
     [dialog.get() showWindow:nil];
     dialog_shown = true;
 
     // If the dialog asked the user to opt-in for stats and crash reporting,
     // record the decision and enable the crash reporter if appropriate.
     bool consent_given = [dialog.get() statsEnabled];
-    InitiateMetricsReportingChange(consent_given,
-                                   OnMetricsReportingCallbackType());
+    ChangeMetricsReportingState(consent_given);
 
     // If selected set as default browser.
     BOOL make_default_browser = [dialog.get() makeDefaultBrowser];
     if (make_default_browser) {
       bool success = shell_integration::SetAsDefaultBrowser();
       DCHECK(success);
     }
   }
 #else  // GOOGLE_CHROME_BUILD
   // We don't show the dialog in Chromium.
@@ skipping 174 matching lines @@
   [NSApp stopModal];
 }
 
 - (IBAction)learnMore:(id)sender {
   NSString* urlStr = base::SysUTF8ToNSString(chrome::kLearnMoreReportingURL);
   NSURL* learnMoreUrl = [NSURL URLWithString:urlStr];
   [[NSWorkspace sharedWorkspace] openURL:learnMoreUrl];
 }
 
 @end