[Autofill] Add UMA timing metrics for requestAutocomplete dialog.

chrome/browser/autofill/autocheckout_infobar_delegate.h

 // Copyright (c) 2013 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.
 
 #ifndef CHROME_BROWSER_AUTOFILL_AUTOCHECKOUT_INFOBAR_DELEGATE_H_
 #define CHROME_BROWSER_AUTOFILL_AUTOCHECKOUT_INFOBAR_DELEGATE_H_
 
 #include "base/basictypes.h"
 #include "base/gtest_prod_util.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/string16.h"
 #include "chrome/browser/api/infobars/confirm_infobar_delegate.h"
 #include "chrome/browser/autofill/autofill_metrics.h"
 #include "content/public/common/ssl_status.h"
 #include "googleurl/src/gurl.h"
 
-class AutocheckoutManager;
-
 namespace content {
 struct LoadCommittedDetails;
 }
 
+namespace autofill {
+
+class AutocheckoutManager;
+
 // An InfoBar delegate that enables the user to allow or deny storing credit
 // card information gathered from a form submission.
 class AutocheckoutInfoBarDelegate : public ConfirmInfoBarDelegate {
  public:
   // Creates an autofillflow infobar delegate and adds it to |infobar_service|.
   static void Create(const AutofillMetrics& metric_logger,
                      const GURL& source_url,
                      const content::SSLStatus& ssl_status,
                      AutocheckoutManager* autocheckout_manager,
                      InfoBarService* infobar_service);
@@ skipping 48 matching lines @@
   content::SSLStatus ssl_status_;
 
   // Did the user ever explicitly accept or dismiss this infobar?
   bool had_user_interaction_;
 
   FRIEND_TEST_ALL_PREFIXES(AutofillMetricsTest, AutocheckoutInfoBar);
 
   DISALLOW_COPY_AND_ASSIGN(AutocheckoutInfoBarDelegate);
 };
 
+}  // namespace autofill
+
 #endif  // CHROME_BROWSER_AUTOFILL_AUTOCHECKOUT_INFOBAR_DELEGATE_H_