Add a class to allocate small objects w/o extra calls to new.

include/core/SkShader.h

 /*
  * Copyright 2006 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 
 #ifndef SkShader_DEFINED
 #define SkShader_DEFINED
@@ skipping 353 matching lines @@
 
     SkShader(SkReadBuffer& );
     virtual void flatten(SkWriteBuffer&) const SK_OVERRIDE;
 private:
     SkMatrix            fLocalMatrix;
     SkMatrix            fTotalInverse;
     uint8_t             fPaintAlpha;
     uint8_t             fTotalInverseClass;
     SkDEBUGCODE(SkBool8 fInSetContext;)
 
-    static SkShader* CreateBitmapShader(const SkBitmap& src,
-                                        TileMode, TileMode,
-                                        void* storage, size_t storageSize);
-    friend class SkAutoBitmapShaderInstall;
     typedef SkFlattenable INHERITED;
 };
 
 #endif