1 files changed, 23 insertions, 24 deletions

diff --git a/Source/WebCore/html/HTMLMetaElement.cpp b/Source/WebCore/html/HTMLMetaElement.cpp
index 6f360fe2b..15f002177 100644
--- a/Source/WebCore/html/HTMLMetaElement.cpp
+++ b/Source/WebCore/html/HTMLMetaElement.cpp
@@ -25,6 +25,7 @@
 
 #include "Attribute.h"
 #include "Document.h"
+#include "HTMLHeadElement.h"
 #include "HTMLNames.h"
 
 namespace WebCore {
@@ -37,9 +38,14 @@ inline HTMLMetaElement::HTMLMetaElement(const QualifiedName& tagName, Document&
     ASSERT(hasTagName(metaTag));
 }
 
-PassRefPtr<HTMLMetaElement> HTMLMetaElement::create(const QualifiedName& tagName, Document& document)
+Ref<HTMLMetaElement> HTMLMetaElement::create(Document& document)
 {
-    return adoptRef(new HTMLMetaElement(tagName, document));
+    return adoptRef(*new HTMLMetaElement(metaTag, document));
+}
+
+Ref<HTMLMetaElement> HTMLMetaElement::create(const QualifiedName& tagName, Document& document)
+{
+    return adoptRef(*new HTMLMetaElement(tagName, document));
 }
 
 void HTMLMetaElement::parseAttribute(const QualifiedName& name, const AtomicString& value)
@@ -57,55 +63,48 @@ void HTMLMetaElement::parseAttribute(const QualifiedName& name, const AtomicStri
 Node::InsertionNotificationRequest HTMLMetaElement::insertedInto(ContainerNode& insertionPoint)
 {
     HTMLElement::insertedInto(insertionPoint);
-    if (insertionPoint.inDocument())
+    if (insertionPoint.isConnected())
         process();
     return InsertionDone;
 }
 
 void HTMLMetaElement::process()
 {
-    if (!inDocument())
+    // Changing a meta tag while it's not in the tree shouldn't have any effect on the document.
+    if (!isConnected())
         return;
 
-    const AtomicString& contentValue = fastGetAttribute(contentAttr);
+    const AtomicString& contentValue = attributeWithoutSynchronization(contentAttr);
     if (contentValue.isNull())
         return;
 
-    if (equalIgnoringCase(name(), "viewport"))
+    if (equalLettersIgnoringASCIICase(name(), "viewport"))
         document().processViewport(contentValue, ViewportArguments::ViewportMeta);
 #if PLATFORM(IOS)
-    else if (equalIgnoringCase(name(), "format-detection"))
+    else if (equalLettersIgnoringASCIICase(name(), "format-detection"))
         document().processFormatDetection(contentValue);
-    else if (equalIgnoringCase(name(), "apple-mobile-web-app-orientations"))
+    else if (equalLettersIgnoringASCIICase(name(), "apple-mobile-web-app-orientations"))
         document().processWebAppOrientations();
 #endif
-    else if (equalIgnoringCase(name(), "referrer"))
+    else if (equalLettersIgnoringASCIICase(name(), "referrer"))
         document().processReferrerPolicy(contentValue);
-#if ENABLE(LEGACY_VIEWPORT_ADAPTION)
-    else if (equalIgnoringCase(name(), "handheldfriendly") && equalIgnoringCase(contentValue, "true"))
-        document().processViewport("width=device-width", ViewportArguments::HandheldFriendlyMeta);
-    else if (equalIgnoringCase(name(), "mobileoptimized"))
-        document().processViewport("width=device-width, initial-scale=1", ViewportArguments::MobileOptimizedMeta);
-#endif
 
-    // Get the document to process the tag, but only if we're actually part of DOM tree (changing a meta tag while
-    // it's not in the tree shouldn't have any effect on the document)
-    const AtomicString& httpEquivValue = fastGetAttribute(http_equivAttr);
+    const AtomicString& httpEquivValue = attributeWithoutSynchronization(http_equivAttr);
     if (!httpEquivValue.isNull())
-        document().processHttpEquiv(httpEquivValue, contentValue);
+        document().processHttpEquiv(httpEquivValue, contentValue, isDescendantOf(document().head()));
 }
 
-String HTMLMetaElement::content() const
+const AtomicString& HTMLMetaElement::content() const
 {
-    return getAttribute(contentAttr);
+    return attributeWithoutSynchronization(contentAttr);
 }
 
-String HTMLMetaElement::httpEquiv() const
+const AtomicString& HTMLMetaElement::httpEquiv() const
 {
-    return getAttribute(http_equivAttr);
+    return attributeWithoutSynchronization(http_equivAttr);
 }
 
-String HTMLMetaElement::name() const
+const AtomicString& HTMLMetaElement::name() const
 {
     return getNameAttribute();
 }