[Autofill] Add UMA timing metrics for requestAutocomplete dialog.

chrome/browser/ui/autofill/autofill_dialog_controller_impl.h

 // 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.
 
 #ifndef CHROME_BROWSER_UI_AUTOFILL_AUTOFILL_DIALOG_CONTROLLER_IMPL_H_
 #define CHROME_BROWSER_UI_AUTOFILL_AUTOFILL_DIALOG_CONTROLLER_IMPL_H_
 
 #include <vector>
 
 #include "base/callback.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/string16.h"
+#include "base/time.h"
+#include "chrome/browser/autofill/autofill_metrics.h"
 #include "chrome/browser/autofill/field_types.h"
 #include "chrome/browser/autofill/form_structure.h"
 #include "chrome/browser/autofill/personal_data_manager.h"
 #include "chrome/browser/autofill/wallet/required_action.h"
 #include "chrome/browser/autofill/wallet/wallet_client.h"
 #include "chrome/browser/autofill/wallet/wallet_client_observer.h"
 #include "chrome/browser/ui/autofill/autofill_dialog_controller.h"
 #include "chrome/browser/ui/autofill/autofill_dialog_models.h"
 #include "chrome/browser/ui/autofill/autofill_dialog_types.h"
 #include "chrome/browser/ui/autofill/autofill_popup_controller_impl.h"
@@ skipping 22 matching lines @@
                                      public AutofillPopupDelegate,
                                      public content::NotificationObserver,
                                      public SuggestionsMenuModelDelegate,
                                      public wallet::WalletClientObserver {
  public:
   AutofillDialogControllerImpl(
       content::WebContents* contents,
       const FormData& form_structure,
       const GURL& source_url,
       const content::SSLStatus& ssl_status,
+      const AutofillMetrics& metric_logger,
       const base::Callback<void(const FormStructure*)>& callback);
   virtual ~AutofillDialogControllerImpl();
 
   void Show();
   void Hide();
 
   // AutofillDialogController implementation.
   virtual string16 DialogTitle() const OVERRIDE;
   virtual string16 EditSuggestionText() const OVERRIDE;
   virtual string16 UseBillingForShippingText() const OVERRIDE;
@@ skipping 190 matching lines @@
 
   // The section for which |popup_controller_| is currently showing a popup
   // (if any).
   DialogSection section_showing_popup_;
 
   scoped_ptr<AutofillDialogView> view_;
 
   // A NotificationRegistrar for tracking the completion of sign-in.
   content::NotificationRegistrar registrar_;
 
+  // For logging UMA metrics.
+  const base::Time dialog_shown_timestamp_;
+  const AutofillMetrics& metric_logger_;
+
   DISALLOW_COPY_AND_ASSIGN(AutofillDialogControllerImpl);
 };
 
 }  // namespace autofill
 
 #endif  // CHROME_BROWSER_UI_AUTOFILL_AUTOFILL_DIALOG_CONTROLLER_IMPL_H_