Translate viewport related meta tags into @viewport descriptors as suggested by the CSS Device Adap…

Source/core/inspector/InspectorStyleSheet.cpp

 /*
  * Copyright (C) 2010, 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:
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
  *     notice, this list of conditions and the following disclaimer in the
@@ skipping 1677 matching lines @@
 bool InspectorStyleSheet::inlineStyleSheetText(String* result) const
 {
     if (!m_pageStyleSheet)
         return false;
 
     Node* ownerNode = m_pageStyleSheet->ownerNode();
     if (!ownerNode || ownerNode->nodeType() != Node::ELEMENT_NODE)
         return false;
     Element* ownerElement = toElement(ownerNode);
 
-    if (!ownerElement->hasTagName(HTMLNames::styleTag) && !ownerElement->hasTagName(SVGNames::styleTag))
+    // FIXME: Handle @viewport rules.
+    if (!ownerElement->hasTagName(HTMLNames::styleTag) && !ownerElement->hasTagName(SVGNames::styleTag) && !ownerElement->hasTagName(HTMLNames::metaTag))
         return false;
     *result = ownerElement->textContent();
     return true;
 }
 
 PassRefPtr<InspectorStyleSheetForInlineStyle> InspectorStyleSheetForInlineStyle::create(InspectorPageAgent* pageAgent, const String& id, PassRefPtr<Element> element, TypeBuilder::CSS::StyleSheetOrigin::Enum origin, Listener* listener)
 {
     return adoptRef(new InspectorStyleSheetForInlineStyle(pageAgent, id, element, origin, listener));
 }
 
@@ skipping 106 matching lines @@
 
     RefPtr<MutableStylePropertySet> tempDeclaration = MutableStylePropertySet::create();
     RuleSourceDataList ruleSourceDataResult;
     StyleSheetHandler handler(m_styleText, m_element->document(), m_element->document()->elementSheet()->contents(), &ruleSourceDataResult);
     createCSSParser(m_element->document())->parseDeclaration(tempDeclaration.get(), m_styleText, &handler, m_element->document()->elementSheet()->contents());
     return ruleSourceDataResult.first().release();
 }
 
 } // namespace WebCore