Implement ComputedStylePropertyMap for Typed OM.

third_party/WebKit/Source/core/css/cssom/StylePropertyMap.cpp

Index: third_party/WebKit/Source/core/css/cssom/StylePropertyMap.cpp
diff --git a/third_party/WebKit/Source/core/css/cssom/StylePropertyMap.cpp b/third_party/WebKit/Source/core/css/cssom/StylePropertyMap.cpp
index 5f4bcc3cd22f339823ee21d6b6b19639906215c4..04f70df7b4a1b1214fe0d6af0868dbc193240ca6 100644
--- a/third_party/WebKit/Source/core/css/cssom/StylePropertyMap.cpp
+++ b/third_party/WebKit/Source/core/css/cssom/StylePropertyMap.cpp
@@ -7,21 +7,27 @@
 #include "bindings/core/v8/ExceptionState.h"
 #include "core/css/cssom/SimpleLength.h"
 #include "core/css/cssom/StyleValue.h"
+#include "core/css/cssom/StyleValueFactory.h"
 
 namespace blink {
 
 StyleValue* StylePropertyMap::get(const String& propertyName, ExceptionState& exceptionState)
 {
     CSSPropertyID propertyID = cssPropertyID(propertyName);
-    if (propertyID != CSSPropertyInvalid)
-        return get(propertyID);
+    if (propertyID == CSSPropertyInvalid) {
+        // TODO(meade): Handle custom properties here.
+        exceptionState.throwTypeError("Invalid propertyName: " + propertyName);
+        return nullptr;
+    }
 
-    // TODO(meade): Handle custom properties here.
-    exceptionState.throwTypeError("Invalid propertyName: " + propertyName);
-    return nullptr;
+    StyleValueVector styleVector = getAll(propertyID);
+    if (styleVector.isEmpty())
+        return nullptr;
+
+    return styleVector.at(0);
 }
 
-HeapVector<Member<StyleValue>> StylePropertyMap::getAll(const String& propertyName, ExceptionState& exceptionState)
+StylePropertyMap::StyleValueVector StylePropertyMap::getAll(const String& propertyName, ExceptionState& exceptionState)
 {
     CSSPropertyID propertyID = cssPropertyID(propertyName);
     if (propertyID != CSSPropertyInvalid)
@@ -76,4 +82,24 @@ void StylePropertyMap::remove(const String& propertyName, ExceptionState& except
     exceptionState.throwTypeError("Invalid propertyName: " + propertyName);
 }
 
+StylePropertyMap::StyleValueVector StylePropertyMap::cssValueToStyleValueVector(CSSPropertyID propertyID, const CSSValue& cssValue)
+{
+    StyleValueVector styleValueVector;
+
+    if (!cssValue.isValueList()) {
+        StyleValue* styleValue = StyleValueFactory::create(propertyID, cssValue);
+        if (styleValue)
+            styleValueVector.append(styleValue);
+        return styleValueVector;
+    }
+
+    for (const Member<CSSValue> value : *toCSSValueList(&cssValue)) {
+        StyleValue* styleValue = StyleValueFactory::create(propertyID, *value);
+        if (styleValue)
+            styleValueVector.append(styleValue);
+    }
+
+    return styleValueVector;
+}
+
 } // namespace blink