Make classes and structures in core/style, core/plugins and core/streams fast-allocated.

Source/core/style/GridPosition.h

 /*
  * Copyright (C) 2012 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 13 matching lines @@
  * 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 GridPosition_h
 #define GridPosition_h
 
+#include "wtf/Allocator.h"
 #include "wtf/text/WTFString.h"
 
 namespace blink {
 
 enum GridPositionType {
     AutoPosition,
     ExplicitPosition, // [ <integer> || <string> ]
     SpanPosition, // span && [ <integer> || <string> ]
     NamedGridAreaPosition // <ident>
 };
 
 class GridPosition {
+    DISALLOW_ALLOCATION();
 public:
     GridPosition()
         : m_type(AutoPosition)
         , m_integerPosition(0)
     {
     }
 
     bool isPositive() const { return integerPosition() > 0; }
 
     GridPositionType type() const { return m_type; }
@@ skipping 59 matching lines @@
     }
 private:
     GridPositionType m_type;
     int m_integerPosition;
     String m_namedGridLine;
 };
 
 } // namespace blink
 
 #endif // GridPosition_h