mac: Add histograms to measure impact of Address Book integration.

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 <list>
 #include <map>
 #include <string>
@@ skipping 338 matching lines @@
 
   // If |initial_interaction_timestamp_| is unset or is set to a later time than
   // |interaction_timestamp|, updates the cached timestamp.  The latter check is
   // needed because IPC messages can arrive out of order.
   void UpdateInitialInteractionTimestamp(
       const base::TimeTicks& interaction_timestamp);
 
   // Shared code to determine if |form| should be uploaded.
   bool ShouldUploadForm(const FormStructure& form);
 
+#if defined(OS_MACOSX) && !defined(OS_IOS)
+  // Emits a UMA metric indicating whether the accepting Autofill suggestion is

[Ilya Sherman, 2015/05/19 21:53:43]

nit: "accepting" -> "accepted"

[erikchen, 2015/05/19 22:33:02]

Done.

+  // from the Mac Address Book.
+  void EmitIsFromAddressBookMetric(int unique_id);
+#endif  // defined(OS_MACOSX) && !defined(OS_IOS)
+
   // Provides driver-level context to the shared code of the component. Must
   // outlive this object.
   AutofillDriver* driver_;
 
   AutofillClient* const client_;
 
   // Handles real PAN requests.
   wallet::RealPanWalletClient real_pan_client_;
 
   std::string app_locale_;
@@ skipping 107 matching lines @@
                            AutocompleteOffRespectedForAutocomplete);
   FRIEND_TEST_ALL_PREFIXES(AutofillManagerTest,
                            DontSaveCvcInAutocompleteHistory);
   FRIEND_TEST_ALL_PREFIXES(AutofillManagerTest, DontOfferToSaveWalletCard);
   DISALLOW_COPY_AND_ASSIGN(AutofillManager);
 };
 
 }  // namespace autofill
 
 #endif  // COMPONENTS_AUTOFILL_CORE_BROWSER_AUTOFILL_MANAGER_H_