[Autofill] Add UMA timing metrics for requestAutocomplete dialog.

chrome/browser/autofill/autofill_manager.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_AUTOFILL_AUTOFILL_MANAGER_H_
 #define CHROME_BROWSER_AUTOFILL_AUTOFILL_MANAGER_H_
 
 #include <list>
 #include <map>
 #include <string>
@@ skipping 105 matching lines @@
   content::WebContents* GetWebContents() const;
 
   // Returns the present form structures seen by Autofill manager.
   const std::vector<FormStructure*>& GetFormStructures();
 
   // Causes the dialog for request autocomplete feature to be shown.
   virtual void ShowRequestAutocompleteDialog(
       const FormData& form,
       const GURL& source_url,
       const content::SSLStatus& ssl_status,
+      autofill::DialogRequester requester,
       const base::Callback<void(const FormStructure*)>& callback);
 
   // Happens when the autocomplete dialog runs its callback when being closed.
   void RequestAutocompleteDialogClosed();
 
  protected:
   // Only test code should subclass AutofillManager.
   friend class base::RefCounted<AutofillManager>;
 
   AutofillManager(content::WebContents* web_contents,
@@ skipping 215 matching lines @@
   // Should be set to true in AutofillManagerTest and other tests, false in
   // AutofillDownloadManagerTest and in non-test environment. Is false by
   // default for the public constructor, and true by default for the test-only
   // constructors.
   bool disable_download_manager_requests_;
 
   // Handles single-field autocomplete form data.
   AutocompleteHistoryManager autocomplete_history_manager_;
 
   // Handles autocheckout flows.
-  AutocheckoutManager autocheckout_manager_;
+  autofill::AutocheckoutManager autocheckout_manager_;
 
   // For logging UMA metrics. Overridden by metrics tests.
   scoped_ptr<const AutofillMetrics> metric_logger_;
   // Have we logged whether Autofill is enabled for this page load?
   bool has_logged_autofill_enabled_;
   // Have we logged an address suggestions count metric for this page?
   bool has_logged_address_suggestions_count_;
   // Have we shown Autofill suggestions at least once?
   bool did_show_suggestions_;
   // Has the user manually edited at least one form field among the autofillable
@@ skipping 55 matching lines @@
   FRIEND_TEST_ALL_PREFIXES(AutofillManagerTest,
                            TestTabContentsWithExternalDelegate);
   FRIEND_TEST_ALL_PREFIXES(AutofillMetricsTest,
                            UserHappinessFormLoadAndSubmission);
   FRIEND_TEST_ALL_PREFIXES(AutofillMetricsTest, UserHappinessFormInteraction);
 
   DISALLOW_COPY_AND_ASSIGN(AutofillManager);
 };
 
 #endif  // CHROME_BROWSER_AUTOFILL_AUTOFILL_MANAGER_H_