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

Source/core/dom/DocumentLifecycle.h

 /*
  * Copyright (C) 2013 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 14 matching lines @@
  * 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 DocumentLifecycle_h
 #define DocumentLifecycle_h
 
 #include "core/CoreExport.h"
+#include "wtf/Allocator.h"
 #include "wtf/Assertions.h"
 #include "wtf/Noncopyable.h"
 
 namespace blink {
 
 class CORE_EXPORT DocumentLifecycle {
+    DISALLOW_ALLOCATION();
     WTF_MAKE_NONCOPYABLE(DocumentLifecycle);
 public:
     enum State {
         Uninitialized,
         Inactive,
 
         // When the document is active, it traverses these states.
 
         VisualUpdatePending,
 
@@ skipping 21 matching lines @@
         CompositingForSlimmingPaintV2Clean,
 
         // Once the document starts shuting down, we cannot return
         // to the style/layout/compositing states.
         Stopping,
         Stopped,
         Disposed,
     };
 
     class Scope {
+        STACK_ALLOCATED();
         WTF_MAKE_NONCOPYABLE(Scope);
     public:
         Scope(DocumentLifecycle&, State finalState);
         ~Scope();
 
     private:
         DocumentLifecycle& m_lifecycle;
         State m_finalState;
     };
 
     class DeprecatedTransition {
+        DISALLOW_ALLOCATION();
         WTF_MAKE_NONCOPYABLE(DeprecatedTransition);
     public:
         DeprecatedTransition(State from, State to);
         ~DeprecatedTransition();
 
         State from() const { return m_from; }
         State to() const { return m_to; }
 
     private:
         DeprecatedTransition* m_previous;
         State m_from;
         State m_to;
     };
 
     class DetachScope {
+        STACK_ALLOCATED();
         WTF_MAKE_NONCOPYABLE(DetachScope);
     public:
         explicit DetachScope(DocumentLifecycle& documentLifecycle)
             : m_documentLifecycle(documentLifecycle)
         {
             m_documentLifecycle.incrementDetachCount();
         }
 
         ~DetachScope()
         {
@@ skipping 78 matching lines @@
     return m_state != InPerformLayout
         && m_state != InCompositingUpdate
         && m_state != InPaintInvalidation
         && m_state != InPaintForSlimmingPaintV2
         && m_state != InCompositingForSlimmingPaintV2;
 }
 
 } // namespace blink
 
 #endif