Allow cancelling the currently-presented dialog.

ios/chrome/browser/ui/dialogs/dialog_presenter_unittest.mm

 // Copyright 2015 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.
 
 #import "ios/chrome/browser/ui/dialogs/dialog_presenter.h"
 
 #include "base/time/time.h"
 #import "ios/chrome/browser/ui/alert_coordinator/alert_coordinator.h"
 #import "ios/web/public/test/fakes/test_web_state.h"
 #include "ios/web/public/web_state/web_state_observer.h"
@@ skipping 102 matching lines @@
   [presenter() runJavaScriptAlertPanelWithMessage:@""
                                        requestURL:GURL()
                                          webState:&webState2
                                 completionHandler:nil];
   EXPECT_EQ(1U, delegate().presentedWebStates.size());
   EXPECT_EQ(&webState1, delegate().presentedWebStates.front());
   // Dismiss the dialog for |webState1| and call the confirm handler to trigger
   // showing the dialog for |webState2|.
   [presenter().presentedDialogCoordinator stop];
   [presenter()
-      buttonWasTappedForCoordinator:presenter().presentedDialogCoordinator];
+      dialogCoordinatorWasStopped:presenter().presentedDialogCoordinator];
   EXPECT_EQ(2U, delegate().presentedWebStates.size());
   EXPECT_EQ(&webState1, delegate().presentedWebStates.front());
   EXPECT_EQ(&webState2, delegate().presentedWebStates.back());
 }
 
 // Tests that cancelling a queued JavaScript dialog will call its completion
 // handler.
 TEST_F(DialogPresenterTest, CancelTest) {
   // Show a dialog for |webState1| and enqueue a dialog for |webState2|.
   DialogPresenterTestWebState webState1;
@@ skipping 71 matching lines @@
                                   completion3_called = YES;
                                 }];
   EXPECT_EQ(1U, delegate().presentedWebStates.size());
   EXPECT_EQ(&webState1, delegate().presentedWebStates.front());
   // Cancel all dialogs and verify that all |completion_called| were called.
   [presenter() cancelAllDialogs];
   EXPECT_TRUE(completion1_called);
   EXPECT_TRUE(completion2_called);
   EXPECT_TRUE(completion3_called);
 }