Replace RenderArena with PartitionAlloc.

Source/core/html/SearchInputType.cpp

 /*
  * Copyright (C) 2010 Google 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 44 matching lines @@
 {
     return adoptPtr(new SearchInputType(element));
 }
 
 void SearchInputType::attach()
 {
     TextFieldInputType::attach();
     observeFeatureIfVisible(UseCounter::InputTypeSearch);
 }
 
-RenderObject* SearchInputType::createRenderer(RenderArena* arena, RenderStyle*) const
+RenderObject* SearchInputType::createRenderer(RenderStyle*) const
 {
-    return new (arena) RenderSearchField(element());
+    return new RenderSearchField(element());
 }
 
 const AtomicString& SearchInputType::formControlType() const
 {
     return InputTypeNames::search();
 }
 
 bool SearchInputType::shouldRespectSpeechAttribute()
 {
     return true;
@@ skipping 101 matching lines @@
         toRenderSearchField(element()->renderer())->updateCancelButtonVisibility();
 
     // If the incremental attribute is set, then dispatch the search event
     if (searchEventsShouldBeDispatched())
         startSearchEventTimer();
 
     TextFieldInputType::didSetValueByUserEdit(state);
 }
 
 } // namespace WebCore