Replace RenderArena with PartitionAlloc.

Source/core/rendering/RenderLayer.cpp

 /*
  * Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012 Apple Inc. All rights reserved.
  *
  * Portions are Copyright (C) 1998 Netscape Communications Corporation.
  *
  * Other contributors:
  *   Robert O'Callahan <roc+@cs.cmu.edu>
  *   David Baron <dbaron@fas.harvard.edu>
  *   Christian Biesinger <cbiesinger@web.de>
  *   Randall Jesup <rjesup@wgate.com>
@@ skipping 49 matching lines @@
 #include "core/page/EventHandler.h"
 #include "core/page/FocusController.h"
 #include "core/page/Frame.h"
 #include "core/page/FrameView.h"
 #include "core/page/Page.h"
 #include "core/page/Settings.h"
 #include "core/page/UseCounter.h"
 #include "core/page/animation/AnimationController.h"
 #include "core/page/scrolling/ScrollingCoordinator.h"
 #include "core/platform/HistogramSupport.h"
+#include "core/platform/Partitions.h"
 #include "core/platform/PlatformGestureEvent.h"
 #include "core/platform/PlatformMouseEvent.h"
 #include "core/platform/ScrollAnimator.h"
 #include "core/platform/Scrollbar.h"
 #include "core/platform/ScrollbarTheme.h"
 #include "core/platform/chromium/TraceEvent.h"
 #include "core/platform/graphics/FloatPoint3D.h"
 #include "core/platform/graphics/FloatRect.h"
 #include "core/platform/graphics/GraphicsContextStateSaver.h"
 #include "core/platform/graphics/filters/custom/CustomFilterGlobalContext.h"
 #include "core/platform/graphics/filters/custom/CustomFilterOperation.h"
 #include "core/platform/graphics/filters/custom/CustomFilterValidatedProgram.h"
 #include "core/platform/graphics/filters/custom/ValidatedCustomFilterOperation.h"
 #include "core/platform/graphics/transforms/ScaleTransformOperation.h"
 #include "core/platform/graphics/transforms/TransformationMatrix.h"
 #include "core/platform/graphics/transforms/TranslateTransformOperation.h"
 #include "core/rendering/ColumnInfo.h"
 #include "core/rendering/FilterEffectRenderer.h"
 #include "core/rendering/HitTestRequest.h"
 #include "core/rendering/HitTestResult.h"
 #include "core/rendering/HitTestingTransformState.h"
 #include "core/rendering/OverlapTestRequestClient.h"
-#include "core/rendering/RenderArena.h"
 #include "core/rendering/RenderFlowThread.h"
 #include "core/rendering/RenderGeometryMap.h"
 #include "core/rendering/RenderInline.h"
 #include "core/rendering/RenderLayerBacking.h"
 #include "core/rendering/RenderLayerCompositor.h"
 #include "core/rendering/RenderMarquee.h"
 #include "core/rendering/RenderReplica.h"
 #include "core/rendering/RenderScrollbar.h"
 #include "core/rendering/RenderScrollbarPart.h"
 #include "core/rendering/RenderTreeAsText.h"
@@ skipping 1517 matching lines @@
         LayoutRect clipRect = paintingExtent(rootLayer, paintDirtyRect, paintBehavior);
         context->clip(clipRect);
         context->beginTransparencyLayer(renderer()->opacity());
 #ifdef REVEAL_TRANSPARENCY_LAYERS
         context->setFillColor(Color(0.0f, 0.0f, 0.5f, 0.2f));
         context->fillRect(clipRect);
 #endif
     }
 }
 
-void* RenderLayer::operator new(size_t sz, RenderArena* renderArena)
+#if ENABLE(PARTITION_ALLOC)
+void* RenderLayer::operator new(size_t sz)
 {
-    return renderArena->allocate(sz);
+    return partitionAlloc(Partitions::getRenderingPartition(), sz);
 }
 
-void RenderLayer::operator delete(void* ptr, size_t sz)
+void RenderLayer::operator delete(void* ptr)
 {
-    // Stash size where destroy can find it.
-    *(size_t *)ptr = sz;
+    partitionFree(ptr);
 }
+#endif
 
-void RenderLayer::destroy(RenderArena* renderArena)
+void RenderLayer::destroy()
 {
     delete this;
-
-    // Recover the size left there for us by operator delete and free the memory.
-    renderArena->free(*(size_t *)this, this);
 }
 
 void RenderLayer::addChild(RenderLayer* child, RenderLayer* beforeChild)
 {
     RenderLayer* prevSibling = beforeChild ? beforeChild->previousSibling() : lastChild();
     if (prevSibling) {
         child->setPreviousSibling(prevSibling);
         prevSibling->setNextSibling(child);
         ASSERT(prevSibling != child);
     } else
@@ skipping 4740 matching lines @@
     }
 }
 
 void showLayerTree(const WebCore::RenderObject* renderer)
 {
     if (!renderer)
         return;
     showLayerTree(renderer->enclosingLayer());
 }
 #endif