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

Source/core/layout/LayoutAnalyzer.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 LayoutAnalyzer_h
 #define LayoutAnalyzer_h
 
 #include "platform/LayoutUnit.h"
+#include "wtf/Allocator.h"
+#include "wtf/FastAllocBase.h"
+#include "wtf/Noncopyable.h"
 #include "wtf/PassRefPtr.h"
 
 namespace blink {
 
 class LayoutBlock;
 class LayoutObject;
 class TracedValue;
 
 // Observes the performance of layout and reports statistics via a TracedValue.
 // Usage:
 // LayoutAnalyzer::Scope analyzer(*this);
 class LayoutAnalyzer {
+    WTF_MAKE_FAST_ALLOCATED(LayoutAnalyzer);
+    WTF_MAKE_NONCOPYABLE(LayoutAnalyzer);
 public:
     enum Counter {
         LayoutBlockWidthChanged,
         LayoutBlockHeightChanged,
         LayoutBlockSizeChanged,
         LayoutBlockSizeDidNotChange,
         LayoutObjectsThatSpecifyColumns,
         LayoutAnalyzerStackMaximumDepth,
         LayoutObjectsThatAreFloating,
         LayoutObjectsThatHaveALayer,
         LayoutInlineObjectsThatAlwaysCreateLineBoxes,
         LayoutObjectsThatHadNeverHadLayout,
         LayoutObjectsThatAreOutOfFlowPositioned,
         LayoutObjectsThatNeedPositionedMovementLayout,
         PerformLayoutRootLayoutObjects,
         LayoutObjectsThatNeedLayoutForThemselves,
         LayoutObjectsThatNeedSimplifiedLayout,
         LayoutObjectsThatAreTableCells,
         LayoutObjectsThatAreTextAndCanNotUseTheSimpleFontCodePath,
         CharactersInLayoutObjectsThatAreTextAndCanNotUseTheSimpleFontCodePath,
         LayoutObjectsThatAreTextAndCanUseTheSimpleFontCodePath,
         CharactersInLayoutObjectsThatAreTextAndCanUseTheSimpleFontCodePath,
         TotalLayoutObjectsThatWereLaidOut,
     };
     static const size_t NumCounters = 21;
 
     class Scope {
+        STACK_ALLOCATED();
     public:
         explicit Scope(const LayoutObject&);
         ~Scope();
 
     private:
         const LayoutObject& m_layoutObject;
         LayoutAnalyzer* m_analyzer;
     };
 
     class BlockScope {
+        STACK_ALLOCATED();
     public:
         explicit BlockScope(const LayoutBlock&);
         ~BlockScope();
 
     private:
         const LayoutBlock& m_block;
         LayoutUnit m_width;
         LayoutUnit m_height;
     };
 
@@ skipping 14 matching lines @@
     const char* nameForCounter(Counter) const;
 
     double m_startMs;
     unsigned m_depth;
     unsigned m_counters[NumCounters];
 };
 
 } // namespace blink
 
 #endif // LayoutAnalyzer_h