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

components/autofill/core/browser/autofill_external_delegate_unittest.cc

 // 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.
 
 #include <vector>
 
 #include "base/command_line.h"
 #include "base/compiler_specific.h"
 #include "base/message_loop/message_loop.h"
 #include "base/strings/string16.h"
@@ skipping 70 matching lines @@
  public:
   MockAutofillManager(AutofillDriver* driver, MockAutofillClient* client)
       // Force to use the constructor designated for unit test, but we don't
       // really need personal_data in this test so we pass a NULL pointer.
       : AutofillManager(driver, client, NULL) {}
   virtual ~MockAutofillManager() {}
 
   MOCK_METHOD2(ShouldShowScanCreditCard,
                bool(const FormData& form, const FormFieldData& field));
 
+  // This method is only used for emitting histograms, but makes assumptions
+  // about the internal state of the AutofillManager. Override it to do
+  // nothing.
+  void OnUserDidAcceptAutofillSuggestion(int unique_id) override {}
+
   MOCK_METHOD5(FillOrPreviewForm,
                void(AutofillDriver::RendererFormDataAction action,
                     int query_id,
                     const FormData& form,
                     const FormFieldData& field,
                     int unique_id));
 
   MOCK_METHOD4(FillCreditCardForm,
                void(int query_id,
                     const FormData& form,
@@ skipping 386 matching lines @@
 TEST_F(AutofillExternalDelegateUnitTest, ExternalDelegateFillFieldWithValue) {
   EXPECT_CALL(autofill_client_, HideAutofillPopup());
   base::string16 dummy_string(ASCIIToUTF16("baz foo"));
   EXPECT_CALL(*autofill_driver_,
               RendererShouldFillFieldWithValue(dummy_string));
   external_delegate_->DidAcceptSuggestion(dummy_string,
                                           POPUP_ITEM_ID_AUTOCOMPLETE_ENTRY);
 }
 
 }  // namespace autofill