Move property setting/removing/addParsedProperty/addParsedProperties functions to MutableStylePrope…

Source/core/editing/ApplyStyleCommand.cpp

Index: Source/core/editing/ApplyStyleCommand.cpp
diff --git a/Source/core/editing/ApplyStyleCommand.cpp b/Source/core/editing/ApplyStyleCommand.cpp
index f4d8e7e28b50f996ef0752510211b3ef0af188e8..4a8dd4cbe052fdaee53bab44f1d3bbf667e0e7e7 100644
--- a/Source/core/editing/ApplyStyleCommand.cpp
+++ b/Source/core/editing/ApplyStyleCommand.cpp
@@ -393,7 +393,7 @@ void ApplyStyleCommand::applyRelativeFontStyleChange(EditingStyle* style)
         }
         lastStyledNode = node;
 
-        RefPtr<StylePropertySet> inlineStyle = copyStyleOrCreateEmpty(element->inlineStyle());
+        RefPtr<MutableStylePropertySet> inlineStyle = copyStyleOrCreateEmpty(element->inlineStyle());
         float currentFontSize = computedFontSize(node);
         float desiredFontSize = max(MinimumFontSize, startingFontSizes.get(node) + style->fontSizeDelta());
         RefPtr<CSSValue> value = inlineStyle->getPropertyCSSValue(CSSPropertyFontSize);
@@ -520,7 +520,7 @@ void ApplyStyleCommand::removeEmbeddingUpToEnclosingBlock(Node* node, Node* unsp
             // other attributes, like we (should) do with B and I elements.
             removeNodeAttribute(element, dirAttr);
         } else {
-            RefPtr<StylePropertySet> inlineStyle = copyStyleOrCreateEmpty(element->inlineStyle());
+            RefPtr<MutableStylePropertySet> inlineStyle = copyStyleOrCreateEmpty(element->inlineStyle());
             inlineStyle->setProperty(CSSPropertyUnicodeBidi, CSSValueNormal);
             inlineStyle->removeProperty(CSSPropertyDirection);
             setNodeAttribute(element, styleAttr, inlineStyle->asText());
@@ -764,7 +764,7 @@ void ApplyStyleCommand::applyInlineStyleToNodeRange(EditingStyle* style, PassRef
                 break;
             // Add to this element's inline style and skip over its contents.
             HTMLElement* element = toHTMLElement(node.get());
-            RefPtr<StylePropertySet> inlineStyle = copyStyleOrCreateEmpty(element->inlineStyle());
+            RefPtr<MutableStylePropertySet> inlineStyle = copyStyleOrCreateEmpty(element->inlineStyle());
             inlineStyle->mergeAndOverrideOnConflict(style->style());
             setNodeAttribute(element, styleAttr, inlineStyle->asText());
             next = NodeTraversal::nextSkippingChildren(node.get());