Make exceptionState parameter of Document::createElement() to have default value

third_party/WebKit/Source/core/animation/KeyframeEffectTest.cpp

 // Copyright 2014 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 "core/animation/KeyframeEffect.h"
 
 #include "bindings/core/v8/Dictionary.h"
 #include "bindings/core/v8/DictionarySequenceOrDictionary.h"
 #include "bindings/core/v8/V8BindingForTesting.h"
 #include "bindings/core/v8/V8KeyframeEffectOptions.h"
 #include "core/animation/AnimationClock.h"
 #include "core/animation/AnimationEffectTiming.h"
 #include "core/animation/AnimationTestHelper.h"
 #include "core/animation/DocumentTimeline.h"
 #include "core/animation/KeyframeEffectModel.h"
 #include "core/animation/Timing.h"
 #include "core/dom/Document.h"
 #include "core/testing/DummyPageHolder.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include <memory>
 #include <v8.h>
 
 namespace blink {
 
 class KeyframeEffectTest : public ::testing::Test {
  protected:
   KeyframeEffectTest() : pageHolder(DummyPageHolder::create()) {
-    element = document().createElement("foo", ASSERT_NO_EXCEPTION);
+    element = document().createElement("foo");
 
     document().animationClock().resetTimeForTesting(
         document().timeline().zeroTime());
     document().documentElement()->appendChild(element.get());
     EXPECT_EQ(0, document().timeline().currentTime());
   }
 
   Document& document() const { return pageHolder->document(); }
 
   std::unique_ptr<DummyPageHolder> pageHolder;
@@ skipping 358 matching lines @@
   timing.iterationDuration = 5;
   KeyframeEffect* animation =
       KeyframeEffect::create(element.get(), nullptr, timing);
   EXPECT_EQ(element.get(), animation->target());
   document().timeline().play(animation);
   pageHolder.reset();
   element.clear();
 }
 
 }  // namespace blink