Partial implementation of inline StylePropertyMap.

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

 // Copyright 2015 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/StyleValue.h"
 
 #include "bindings/core/v8/ScriptValue.h"
+#include "core/css/cssom/SimpleLength.h"
 
 namespace blink {
 
-StyleValue* StyleValue::create(const CSSValue& val)
+StyleValue* StyleValue::create(const CSSValue& value)
 {
-    // TODO: implement.
+    if (value.isPrimitiveValue()) {
+        const CSSPrimitiveValue& primitiveValue = toCSSPrimitiveValue(value);
+        if (primitiveValue.isLength()) {

[Timothy Loh, 2016/02/09 07:29:32]

doesn't work for calcs btw, they return true for isLength but getDoubleValue()
shouldn't be called on them

[meade_UTC10, 2016/02/10 05:55:39]

Done.

+            return SimpleLength::create(primitiveValue.getDoubleValue(), primitiveValue.typeWithCalcResolved());
+        }
+    }
+    // TODO: What if it is a list or pair?
+    // TODO: Implment the rest.
     return nullptr;
 }
 
 ScriptValue StyleValue::parse(ScriptState* state, const String& property, const String& cssText)
 {
     // TODO: implement.
     return ScriptValue();
 }
 
 } // namespace blink