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

Source/core/style/TransformOrigin.h

 // Copyright 2014 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 TransformOrigin_h
 #define TransformOrigin_h
 
 #include "platform/Length.h"
+#include "wtf/Allocator.h"
 
 namespace blink {
 
 class TransformOrigin {
+    DISALLOW_ALLOCATION();
 public:
     TransformOrigin(const Length& x, const Length& y, float z) : m_x(x), m_y(y), m_z(z) { }
     bool operator==(const TransformOrigin& o) const { return m_x == o.m_x && m_y == o.m_y && m_z == o.m_z; }
     bool operator!=(const TransformOrigin& o) const { return !(*this == o); }
     const Length& x() const { return m_x; }
     const Length& y() const { return m_y; }
     float z() const { return m_z; }
 private:
     Length m_x;
     Length m_y;
     float m_z;
 };
 
 } // namespace blink
 
 #endif // TransformOrigin_h