Make RenderObject::style() return a const object

Source/core/dom/FirstLetterPseudoElement.cpp

Index: Source/core/dom/FirstLetterPseudoElement.cpp
diff --git a/Source/core/dom/FirstLetterPseudoElement.cpp b/Source/core/dom/FirstLetterPseudoElement.cpp
index 6384979c13b3c8969fa837870eb718be1ca8fe7f..74142a6b487df87b13fa5174608f5f06ce81df79 100644
--- a/Source/core/dom/FirstLetterPseudoElement.cpp
+++ b/Source/core/dom/FirstLetterPseudoElement.cpp
@@ -240,7 +240,7 @@ RenderStyle* FirstLetterPseudoElement::styleForFirstLetter(RenderObject* rendere
     // We always force the pseudo style to recompute as the first-letter style
     // computed by the style container may not have taken the renderers styles
     // into account.
-    styleContainer->style()->removeCachedPseudoStyle(FIRST_LETTER);
+    styleContainer->deprecatedMutableStyle()->removeCachedPseudoStyle(FIRST_LETTER);
 
     RenderStyle* pseudoStyle = styleContainer->getCachedPseudoStyle(FIRST_LETTER, rendererContainer->firstLineStyle());
     ASSERT(pseudoStyle);
@@ -272,7 +272,7 @@ void FirstLetterPseudoElement::attachFirstLetterTextRenderers()
         new RenderTextFragment(nextRenderer->node() ? nextRenderer->node() : &nextRenderer->document(), oldText.impl(), length, oldText.length() - length);
     remainingText->setFirstLetterPseudoElement(this);
     remainingText->setIsRemainingTextRenderer(true);
-    remainingText->setStyle(nextRenderer->style());
+    remainingText->setStyle(nextRenderer->deprecatedMutableStyle());
 
     if (remainingText->node())
         remainingText->node()->setRenderer(remainingText);
@@ -312,7 +312,7 @@ void FirstLetterPseudoElement::didRecalcStyle(StyleRecalcChange)
         if (!child->isText() && !child->isQuote() && !child->isImage())
             continue;
 
-        child->setPseudoStyle(renderer->style());
+        child->setPseudoStyle(renderer->deprecatedMutableStyle());
     }
 }