Resubmission of sashab's patch: Make CSSComputedStyledeclaration::getPropertyCSSValue return const

third_party/WebKit/Source/core/editing/commands/ApplyStyleCommand.cpp

 /*
  * Copyright (C) 2005, 2006, 2008, 2009 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 1664 matching lines @@
 
 float ApplyStyleCommand::computedFontSize(Node* node)
 {
     if (!node)
         return 0;
 
     CSSComputedStyleDeclaration* style = CSSComputedStyleDeclaration::create(node);
     if (!style)
         return 0;
 
-    CSSPrimitiveValue* value = toCSSPrimitiveValue(style->getPropertyCSSValue(CSSPropertyFontSize));
+    const CSSPrimitiveValue* value = toCSSPrimitiveValue(style->getPropertyCSSValue(CSSPropertyFontSize));
     if (!value)
         return 0;
 
     // TODO(yosin): We should have printer for |CSSPrimitiveValue::UnitType|.
     DCHECK(value->typeWithCalcResolved() == CSSPrimitiveValue::UnitType::Pixels);
     return value->getFloatValue();
 }
 
 void ApplyStyleCommand::joinChildTextNodes(ContainerNode* node, const Position& start, const Position& end)
 {
@@ skipping 35 matching lines @@
 DEFINE_TRACE(ApplyStyleCommand)
 {
     visitor->trace(m_style);
     visitor->trace(m_start);
     visitor->trace(m_end);
     visitor->trace(m_styledInlineElement);
     CompositeEditCommand::trace(visitor);
 }
 
 } // namespace blink