Implement ComputedStylePropertyMap for Typed OM.

third_party/WebKit/Source/core/css/cssom/ComputedStylePropertyMap.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/css/cssom/ComputedStylePropertyMap.h"
+
+#include "core/css/CSSComputedStyleDeclaration.h"
+#include "core/css/cssom/StyleValueFactory.h"
+
+namespace blink {
+
+StylePropertyMap::StyleValueVector ComputedStylePropertyMap::getAll(CSSPropertyID propertyID)
+{
+    ASSERT(propertyID != CSSPropertyInvalid);
+
+    RefPtrWillBeRawPtr<CSSValue> cssValue = m_computedStyleDeclaration->getPropertyCSSValueInternal(propertyID);
+    return cssValueToStyleValueVector(propertyID, *cssValue);
+}
+
+bool ComputedStylePropertyMap::has(CSSPropertyID propertyID)
+{
+    ASSERT(propertyID != CSSPropertyInvalid);
+
+    RefPtrWillBeRawPtr<CSSValue> cssValue = m_computedStyleDeclaration->getPropertyCSSValueInternal(propertyID);
+    if (!cssValue)
+        return false;
+
+    return (!cssValue->isValueList() || toCSSValueList(cssValue)->length() > 0);
+}
+
+Vector<String> ComputedStylePropertyMap::getProperties()
+{
+    Vector<String> result;
+    for (unsigned i = 0; i < m_computedStyleDeclaration->length(); i++) {
+        result.append(m_computedStyleDeclaration->item(i));
+    }
+    return result;
+}
+
+} // namespace blink