[Autofill] Add UMA timing metrics for requestAutocomplete dialog.

chrome/browser/ui/autofill/tab_autofill_manager_delegate.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_TAB_AUTOFILL_MANAGER_DELEGATE_H_
 #define CHROME_BROWSER_UI_AUTOFILL_TAB_AUTOFILL_MANAGER_DELEGATE_H_
 
 #include "base/compiler_specific.h"
 #include "chrome/browser/autofill/autofill_manager_delegate.h"
 #include "chrome/browser/ui/autofill/autofill_dialog_types.h"
@@ skipping 27 matching lines @@
   virtual bool IsSavingPasswordsEnabled() const OVERRIDE;
   virtual void ShowAutofillSettings() OVERRIDE;
   virtual void ShowPasswordGenerationBubble(
       const gfx::Rect& bounds,
       const content::PasswordForm& form,
       autofill::PasswordGenerator* generator) OVERRIDE;
   virtual void ShowRequestAutocompleteDialog(
       const FormData& form,
       const GURL& source_url,
       const content::SSLStatus& ssl_status,
+      const AutofillMetrics& metric_logger,
       const base::Callback<void(const FormStructure*)>& callback) OVERRIDE;
   virtual void RequestAutocompleteDialogClosed() OVERRIDE;
 
   // content::WebContentsObserver implementation.
   virtual void DidNavigateMainFrame(
       const content::LoadCommittedDetails& details,
       const content::FrameNavigateParams& params) OVERRIDE;
 
  private:
   explicit TabAutofillManagerDelegate(content::WebContents* web_contents);
   friend class content::WebContentsUserData<TabAutofillManagerDelegate>;
 
   // Hides the associated request autocomplete dialog (if it exists).
   void HideRequestAutocompleteDialog();
 
   content::WebContents* const web_contents_;
   autofill::AutofillDialogControllerImpl* autofill_dialog_controller_;  // weak.
 
   DISALLOW_COPY_AND_ASSIGN(TabAutofillManagerDelegate);
 };
 
 #endif  // CHROME_BROWSER_UI_AUTOFILL_TAB_AUTOFILL_MANAGER_DELEGATE_H_