[Typed CSSOM] New design for computed styles which includes custom properties

third_party/WebKit/Source/core/css/cssom/StylePropertyMapReadonly.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 StylePropertyMapReadonly_h
 #define StylePropertyMapReadonly_h
 
 #include "bindings/core/v8/CSSStyleValueOrCSSStyleValueSequence.h"
 #include "bindings/core/v8/CSSStyleValueOrCSSStyleValueSequenceOrString.h"
 #include "bindings/core/v8/Iterable.h"
@@ skipping 23 matching lines @@
   virtual bool has(const String& propertyName, ExceptionState&);
 
   virtual Vector<String> getProperties() = 0;
 
   DEFINE_INLINE_VIRTUAL_TRACE() {}
 
  protected:
   StylePropertyMapReadonly() = default;
 
   virtual CSSStyleValueVector getAllInternal(CSSPropertyID) = 0;
-  virtual CSSStyleValueVector getAllInternal(
-      AtomicString customPropertyName) = 0;
+  // TODO(rjwright): Remove the ExceptionState arg once
+  // InlineStypePropertyMap::getAllInternal is implemented.
+  virtual CSSStyleValueVector getAllInternal(AtomicString customPropertyName,
+                                             ExceptionState&) = 0;
 
   virtual HeapVector<StylePropertyMapEntry> getIterationEntries() = 0;
   IterationSource* startIteration(ScriptState*, ExceptionState&) override;
 };
 
 }  // namespace blink
 
 #endif