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

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

 /*
  * Copyright (c) 2013, Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 672 matching lines @@
   animation->cancel();
   animation->update(TimingUpdateOnDemand);
   // This frame will fire the finish event event though no start time has been
   // received from the compositor yet, as cancel() nukes start times.
   simulateFrame(0);
   EXPECT_EQ(std::numeric_limits<double>::infinity(),
             animation->timeToEffectChange());
 }
 
 TEST_F(AnimationAnimationTest, AttachedAnimations) {
-  Persistent<Element> element =
-      document->createElement("foo", ASSERT_NO_EXCEPTION);
+  Persistent<Element> element = document->createElement("foo");
 
   Timing timing;
   KeyframeEffect* keyframeEffect =
       KeyframeEffect::create(element.get(), nullptr, timing);
   Animation* animation = timeline->play(keyframeEffect);
   simulateFrame(0);
   timeline->serviceAnimations(TimingUpdateForAnimationFrame);
   EXPECT_EQ(1U,
             element->elementAnimations()->animations().find(animation)->value);
 
@@ skipping 72 matching lines @@
   EXPECT_EQ(Animation::Idle, animation->playStateInternal());
   EXPECT_TRUE(std::isnan(animation->currentTime()));
   EXPECT_TRUE(std::isnan(animation->startTime()));
   animation->pause();
   EXPECT_EQ(Animation::Pending, animation->playStateInternal());
   EXPECT_EQ(0, animation->currentTime());
   EXPECT_TRUE(std::isnan(animation->startTime()));
 }
 
 }  // namespace blink