Implement iterable<DOMString, (StyleValue or sequence<StyleValue>)> for InlineStylePropertyMap

third_party/WebKit/Source/core/css/cssom/ComputedStylePropertyMap.h

 // 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.
 
 #ifndef ComputedStylePropertyMap_h
 #define ComputedStylePropertyMap_h
 
 #include "core/css/CSSComputedStyleDeclaration.h"
 #include "core/css/cssom/ImmutableStylePropertyMap.h"
 
@@ skipping 19 matching lines @@
     {
         visitor->trace(m_computedStyleDeclaration);
         ImmutableStylePropertyMap::trace(visitor);
     }
 
 protected:
     ComputedStylePropertyMap(CSSComputedStyleDeclaration* computedStyleDeclaration)
         : ImmutableStylePropertyMap()
         , m_computedStyleDeclaration(computedStyleDeclaration) { }
 
-    IterationSource* startIteration(ScriptState*, ExceptionState&) override { return nullptr; }
+    HeapVector<StylePropertyMapEntry> getIterationEntries() override { return HeapVector<StylePropertyMapEntry>(); }
 
     Member<CSSStyleDeclaration> m_computedStyleDeclaration;
 };
 
 } // namespace blink
 
 #endif