Revert 190605 "Make RenderObject::style() return a const object"

trunk/Source/core/css/resolver/SharedStyleFinder.cpp

Index: trunk/Source/core/css/resolver/SharedStyleFinder.cpp
===================================================================
--- trunk/Source/core/css/resolver/SharedStyleFinder.cpp	(revision 190671)
+++ trunk/Source/core/css/resolver/SharedStyleFinder.cpp	(working copy)
@@ -198,7 +198,7 @@
     if (element() == candidate)
         return false;
     Element* parent = candidate.parentOrShadowHostElement();
-    const LayoutStyle* style = candidate.layoutStyle();
+    LayoutStyle* style = candidate.layoutStyle();
     if (!style)
         return false;
     if (!style->isSharable())
@@ -344,7 +344,7 @@
         return 0;
     }
 
-    return shareElement->mutableLayoutStyle();
+    return shareElement->layoutStyle();
 }
 
 }