Make classes and structures in core/page fast-allocated.

Source/core/page/scrolling/ScrollingConstraints.h

 /*
  * Copyright (C) 2012 Apple 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:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
  *
  * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
  * THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef ScrollingConstraints_h
 #define ScrollingConstraints_h
 
 #include "platform/geometry/FloatRect.h"
+#include "wtf/Allocator.h"
 
 namespace blink {
 
 // ViewportConstraints classes encapsulate data and logic required to reposition elements whose layout
 // depends on the viewport rect (i.e., position fixed), when scrolling and zooming.
 class ViewportConstraints {
+    STACK_ALLOCATED();
 public:
     // FIXME: Simplify this code now that position: sticky doesn't exist.
     enum ConstraintType {
         FixedPositionConstaint,
     };
 
     enum AnchorEdgeFlags {
         AnchorEdgeLeft = 1 << 0,
         AnchorEdgeRight = 1 << 1,
         AnchorEdgeTop = 1 << 2,
@@ skipping 21 matching lines @@
 protected:
     ViewportConstraints()
         : m_anchorEdges(0)
     { }
 
     FloatSize m_alignmentOffset;
     AnchorEdges m_anchorEdges;
 };
 
 class FixedPositionViewportConstraints final : public ViewportConstraints {
+    STACK_ALLOCATED();
 public:
     FixedPositionViewportConstraints()
         : ViewportConstraints()
     { }
 
     FixedPositionViewportConstraints(const FixedPositionViewportConstraints& other)
         : ViewportConstraints(other)
         , m_viewportRectAtLastLayout(other.m_viewportRectAtLastLayout)
         , m_layerPositionAtLastLayout(other.m_layerPositionAtLastLayout)
     { }
@@ skipping 19 matching lines @@
 private:
     ConstraintType constraintType() const override { return FixedPositionConstaint; }
 
     FloatRect m_viewportRectAtLastLayout;
     FloatPoint m_layerPositionAtLastLayout;
 };
 
 } // namespace blink
 
 #endif // ScrollingConstraints_h