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

src/core/SkBlitter.h

Index: src/core/SkBlitter.h
diff --git a/src/core/SkBlitter.h b/src/core/SkBlitter.h
index b659fe473581635d8475068a9c680747cb2059ff..d19a34badcd4d9ecbb78cd6f22f074f2ff0927d5 100644
--- a/src/core/SkBlitter.h
+++ b/src/core/SkBlitter.h
@@ -11,11 +11,14 @@
 #define SkBlitter_DEFINED
 
 #include "SkBitmap.h"
+#include "SkBitmapProcShader.h"
+#include "SkMask.h"
 #include "SkMatrix.h"
 #include "SkPaint.h"
 #include "SkRefCnt.h"
 #include "SkRegion.h"
-#include "SkMask.h"
+#include "SkShader.h"
+#include "SkSmallAllocator.h"
 
 /** SkBlitter and its subclasses are responsible for actually writing pixels
     into memory. Besides efficiency, they handle clipping and antialiasing.
@@ -69,21 +72,15 @@ public:
      */
     static SkBlitter* Choose(const SkBitmap& device,
                              const SkMatrix& matrix,
-                             const SkPaint& paint) {
-        return Choose(device, matrix, paint, NULL, 0);
-    }
-
-    static SkBlitter* Choose(const SkBitmap& device,
-                             const SkMatrix& matrix,
                              const SkPaint& paint,
-                             void* storage, size_t storageSize,
+                             SkTBlitterAllocator*,
                              bool drawCoverage = false);
 
     static SkBlitter* ChooseSprite(const SkBitmap& device,
                                    const SkPaint&,
                                    const SkBitmap& src,
                                    int left, int top,
-                                   void* storage, size_t storageSize);
+                                   SkTBlitterAllocator*);
     ///@}
 
 private: