Update legacy Tuple-using code.

components/autofill/content/browser/request_autocomplete_manager_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 "components/autofill/content/browser/content_autofill_driver.h"
 #include "components/autofill/content/browser/request_autocomplete_manager.h"
 #include "components/autofill/content/common/autofill_messages.h"
 #include "components/autofill/core/browser/test_autofill_client.h"
 #include "content/public/browser/web_contents.h"
 #include "content/public/test/mock_render_process_host.h"
@@ skipping 104 matching lines @@
   // extracts the first |AutofillMsg_RequestAutocompleteResult| message, fills
   // the output parameter with the value of the message's parameter, and
   // clears the queue of sent messages.
   bool GetAutocompleteResultMessage(
       blink::WebFormElement::AutocompleteResult* result) {
     const uint32 kMsgID = AutofillMsg_RequestAutocompleteResult::ID;
     const IPC::Message* message =
         process()->sink().GetFirstMessageMatching(kMsgID);
     if (!message)
       return false;
-    Tuple3<blink::WebFormElement::AutocompleteResult, base::string16, FormData>
+    Tuple<blink::WebFormElement::AutocompleteResult, base::string16, FormData>
         autofill_param;
     AutofillMsg_RequestAutocompleteResult::Read(message, &autofill_param);
-    *result = autofill_param.a;
+    *result = get<0>(autofill_param);
     process()->sink().ClearMessages();
     return true;
   }
 
  protected:
   CustomTestAutofillClient autofill_client_;
   scoped_ptr<TestContentAutofillDriver> driver_;
   scoped_ptr<RequestAutocompleteManager> request_autocomplete_manager_;
 
   DISALLOW_COPY_AND_ASSIGN(RequestAutocompleteManagerTest);
@@ skipping 19 matching lines @@
 TEST_F(RequestAutocompleteManagerTest,
        OnRequestAutocompleteWithAutofillDisabled) {
   blink::WebFormElement::AutocompleteResult result;
   driver_->mock_autofill_manager()->set_autofill_enabled(false);
   request_autocomplete_manager_->OnRequestAutocomplete(FormData(), GURL());
   EXPECT_TRUE(GetAutocompleteResultMessage(&result));
   EXPECT_EQ(blink::WebFormElement::AutocompleteResultSuccess, result);
 }
 
 }  // namespace autofill