CL for perf tryjob on linux

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

Index: third_party/WebKit/Source/core/dom/custom/CustomElement.cpp
diff --git a/third_party/WebKit/Source/core/dom/custom/CustomElement.cpp b/third_party/WebKit/Source/core/dom/custom/CustomElement.cpp
index 83ea081e5c28ee8f238f89efccea556ac7a1932e..e0bfe457b025a5007a4e57795cf52939558868a8 100644
--- a/third_party/WebKit/Source/core/dom/custom/CustomElement.cpp
+++ b/third_party/WebKit/Source/core/dom/custom/CustomElement.cpp
@@ -15,7 +15,6 @@
 #include "core/frame/LocalDOMWindow.h"
 #include "core/html/HTMLElement.h"
 #include "core/html/HTMLUnknownElement.h"
-#include "platform/text/Character.h"
 #include "wtf/text/AtomicStringHash.h"
 
 namespace blink {
@@ -45,26 +44,8 @@ CustomElementDefinition* CustomElement::definitionForElement(const Element* elem
     return definitionForElementWithoutCheck(*element);
 }
 
-bool CustomElement::isValidName(const AtomicString& name)
+bool CustomElement::isHyphenContainingElementName(const AtomicString& name)
 {
-    if (!name.length() || name[0] < 'a' || name[0] > 'z')
-        return false;
-
-    bool hasHyphens = false;
-    for (size_t i = 1; i < name.length(); ) {
-        UChar32 ch;
-        if (name.is8Bit())
-            ch = name[i++];
-        else
-            U16_NEXT(name.characters16(), i, name.length(), ch);
-        if (ch == '-')
-            hasHyphens = true;
-        else if (!Character::isPotentialCustomElementNameChar(ch))
-            return false;
-    }
-    if (!hasHyphens)
-        return false;
-
     // https://html.spec.whatwg.org/multipage/scripting.html#valid-custom-element-name
     DEFINE_STATIC_LOCAL(HashSet<AtomicString>, hyphenContainingElementNames, ({
         "annotation-xml",
@@ -76,13 +57,7 @@ bool CustomElement::isValidName(const AtomicString& name)
         "font-face-name",
         "missing-glyph",
     }));
-    return !hyphenContainingElementNames.contains(name);
-}
-
-bool CustomElement::shouldCreateCustomElement(const AtomicString& localName)
-{
-    return RuntimeEnabledFeatures::customElementsV1Enabled()
-        && isValidName(localName);
+    return hyphenContainingElementNames.contains(name);
 }
 
 bool CustomElement::shouldCreateCustomElement(const QualifiedName& tagName)
@@ -98,45 +73,37 @@ static CustomElementDefinition* definitionForName(const Document& document, cons
     return nullptr;
 }
 
-HTMLElement* CustomElement::createCustomElementSync(Document& document, const AtomicString& localName, ExceptionState& exceptionState)
+HTMLElement* CustomElement::createCustomElementSync(Document& document, const AtomicString& localName, ExceptionState* exceptionState)
 {
     return createCustomElementSync(document,
         QualifiedName(nullAtom, localName, HTMLNames::xhtmlNamespaceURI),
         exceptionState);
 }
 
-HTMLElement* CustomElement::createCustomElementSync(Document& document, const QualifiedName& tagName, ExceptionState& exceptionState)
+HTMLElement* CustomElement::createCustomElementSync(Document& document, const QualifiedName& tagName, ExceptionState* exceptionState)
 {
-    CHECK(shouldCreateCustomElement(tagName));
+    DCHECK(shouldCreateCustomElement(tagName));
 
     // To create an element:
     // https://dom.spec.whatwg.org/#concept-create-element
     // 6. If definition is non-null, then:
     // 6.1. If the synchronous custom elements flag is set:
-    if (CustomElementDefinition* definition = definitionForName(document, tagName))
-        return definition->createElementSync(document, tagName, exceptionState);
-
-    return createUndefinedElement(document, tagName);
-}
-
-HTMLElement* CustomElement::createCustomElementSync(Document& document, const QualifiedName& tagName)
-{
-    CHECK(shouldCreateCustomElement(tagName));
 
     // When invoked from "create an element for a token":
     // https://html.spec.whatwg.org/multipage/syntax.html#create-an-element-for-the-token
     // 7. If this step throws an exception, then report the exception,
     // and let element be instead a new element that implements
     // HTMLUnknownElement.
+
     if (CustomElementDefinition* definition = definitionForName(document, tagName))
-        return definition->createElementSync(document, tagName);
+        return definition->createElementSync(document, tagName, exceptionState);
 
     return createUndefinedElement(document, tagName);
 }
 
 HTMLElement* CustomElement::createCustomElementAsync(Document& document, const QualifiedName& tagName)
 {
-    CHECK(shouldCreateCustomElement(tagName));
+    DCHECK(shouldCreateCustomElement(tagName));
 
     // To create an element:
     // https://dom.spec.whatwg.org/#concept-create-element