Start USING_FAST_MALLOC for more paint data structures

third_party/WebKit/Source/platform/graphics/compositing/PaintArtifactCompositor.h

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef PaintArtifactCompositor_h
 #define PaintArtifactCompositor_h
 
 #include "base/memory/ref_counted.h"
 #include "platform/PlatformExport.h"
 #include "platform/RuntimeEnabledFeatures.h"
@@ skipping 21 matching lines @@
 struct PaintChunk;
 
 // Responsible for managing compositing in terms of a PaintArtifact.
 //
 // Owns a subtree of the compositor layer tree, and updates it in response to
 // changes in the paint artifact.
 //
 // PaintArtifactCompositor is the successor to PaintLayerCompositor, reflecting
 // the new home of compositing decisions after paint in Slimming Paint v2.
 class PLATFORM_EXPORT PaintArtifactCompositor {
+  USING_FAST_MALLOC(PaintArtifactCompositor);
   WTF_MAKE_NONCOPYABLE(PaintArtifactCompositor);
 
  public:
   ~PaintArtifactCompositor();
 
   static std::unique_ptr<PaintArtifactCompositor> create() {
     return WTF::wrapUnique(new PaintArtifactCompositor());
   }
 
   // Updates the layer tree to match the provided paint artifact.
@@ skipping 166 matching lines @@
                            PendingLayer);
   FRIEND_TEST_ALL_PREFIXES(PaintArtifactCompositorTestWithPropertyTrees,
                            PendingLayerWithGeometry);
   FRIEND_TEST_ALL_PREFIXES(PaintArtifactCompositorTestWithPropertyTrees,
                            PendingLayerKnownOpaque_DISABLED);
 };
 
 }  // namespace blink
 
 #endif  // PaintArtifactCompositor_h