UKM that threads together multiple form interaction events.

components/autofill/core/browser/autofill_manager.h

 // Copyright 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 COMPONENTS_AUTOFILL_CORE_BROWSER_AUTOFILL_MANAGER_H_
 #define COMPONENTS_AUTOFILL_CORE_BROWSER_AUTOFILL_MANAGER_H_
 
 #include <deque>
 #include <map>
 #include <memory>
@@ skipping 25 matching lines @@
 #endif
 
 // This define protects some debugging code (see DumpAutofillData). This
 // is here to make it easier to delete this code when the test is complete,
 // and to prevent adding the code on mobile where there is no desktop (the
 // debug dump file is written to the desktop) or command-line flags to enable.
 #if defined(OS_WIN) || defined(OS_MACOSX) || defined(OS_LINUX)
 #define ENABLE_FORM_DEBUG_DUMP
 #endif
 
-class GURL;
-
 namespace gfx {
 class RectF;
 }
 
 namespace user_prefs {
 class PrefRegistrySyncable;
 }
 
 namespace autofill {
 
@@ skipping 445 matching lines @@
 
   std::deque<std::string> autofilled_form_signatures_;
 
   // Handles queries and uploads to Autofill servers. Will be NULL if
   // the download manager functionality is disabled.
   std::unique_ptr<AutofillDownloadManager> download_manager_;
 
   // Handles single-field autocomplete form data.
   std::unique_ptr<AutocompleteHistoryManager> autocomplete_history_manager_;
 
+  // Utility for logging URL keyed metrics.
+  std::unique_ptr<AutofillMetrics::UkmLogger> ukm_logger_;
+
   // Utilities for logging form events.
   std::unique_ptr<AutofillMetrics::FormEventLogger> address_form_event_logger_;
   std::unique_ptr<AutofillMetrics::FormEventLogger>
       credit_card_form_event_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?
@@ skipping 100 matching lines @@
   FRIEND_TEST_ALL_PREFIXES(AutofillManagerTest,
                            OnLoadedServerPredictions_ResetManager);
   FRIEND_TEST_ALL_PREFIXES(AutofillManagerTest, DontOfferToSavePaymentsCard);
   FRIEND_TEST_ALL_PREFIXES(AutofillManagerTest, FillInUpdatedExpirationDate);
   DISALLOW_COPY_AND_ASSIGN(AutofillManager);
 };
 
 }  // namespace autofill
 
 #endif  // COMPONENTS_AUTOFILL_CORE_BROWSER_AUTOFILL_MANAGER_H_