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

third_party/WebKit/Source/core/dom/custom/CustomElementTest.cpp

 // Copyright 2016 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/dom/custom/CustomElement.h"
 
 #include "core/HTMLNames.h"
 #include "core/SVGNames.h"
 #include "core/dom/Document.h"
 #include "core/dom/custom/CustomElementDefinition.h"
@@ skipping 168 matching lines @@
       // TODO(pdr): <font-face> should be V0NotCustomElement as per the spec,
       // but was regressed to be V0WaitingForUpgrade in
       // http://crrev.com/656913006
       {"font-face", CustomElementState::Uncustomized,
        Element::V0WaitingForUpgrade},
       {"_-X", CustomElementState::Uncustomized, Element::V0WaitingForUpgrade},
   };
   std::unique_ptr<DummyPageHolder> pageHolder = DummyPageHolder::create();
   Document& document = pageHolder->document();
   for (const auto& data : createElementData) {
-    Element* element = document.createElement(data.name, ASSERT_NO_EXCEPTION);
+    Element* element = document.createElement(data.name);
     EXPECT_EQ(data.state, element->getCustomElementState()) << data.name;
     EXPECT_EQ(data.v0state, element->getV0CustomElementState()) << data.name;
 
     element = document.createElementNS(HTMLNames::xhtmlNamespaceURI, data.name,
                                        ASSERT_NO_EXCEPTION);
     EXPECT_EQ(data.state, element->getCustomElementState()) << data.name;
     EXPECT_EQ(data.v0state, element->getV0CustomElementState()) << data.name;
 
     element = document.createElementNS(SVGNames::svgNamespaceURI, data.name,
                                        ASSERT_NO_EXCEPTION);
@@ skipping 23 matching lines @@
 
   // create an element with an uppercase tag name
   Document& document = holder->document();
   EXPECT_TRUE(document.isHTMLDocument())
       << "this test requires a HTML document";
   Element* element = document.createElement("A-A", shouldNotThrow);
   EXPECT_EQ(definition, element->customElementDefinition());
 }
 
 }  // namespace blink