Switch SkSpecialImage & SkSpecialSurface classes over to smart pointers

gm/tileimagefilter.cpp

 /*
  * Copyright 2013 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "sk_tool_utils.h"
 #include "SkColorFilterImageFilter.h"
 #include "SkColorMatrixFilter.h"
@@ skipping 38 matching lines @@
         canvas->clear(SK_ColorBLACK);
         SkPaint red;
         red.setColor(SK_ColorRED);
         red.setStyle(SkPaint::kStroke_Style);
         SkPaint blue;
         blue.setColor(SK_ColorBLUE);
         blue.setStyle(SkPaint::kStroke_Style);
 
         int x = 0, y = 0;
         for (size_t i = 0; i < 4; i++) {
-            const SkImage* image = (i & 0x01) ? fCheckerboard.get() : fBitmap.get();
+            SkImage* image = (i & 0x01) ? fCheckerboard.get() : fBitmap.get();
             SkRect srcRect = SkRect::MakeXYWH(SkIntToScalar(image->width()/4),
                                               SkIntToScalar(image->height()/4),
                                               SkIntToScalar(image->width()/(i+1)),
                                               SkIntToScalar(image->height()/(i+1)));
             SkRect dstRect = SkRect::MakeXYWH(SkIntToScalar(i * 8),
                                               SkIntToScalar(i * 4),
                                               SkIntToScalar(image->width() - i * 12),
                                               SkIntToScalar(image->height()) - i * 12);
             SkAutoTUnref<SkImageFilter> tileInput(SkImageSource::Create(image));
             SkAutoTUnref<SkImageFilter> filter(
@@ skipping 41 matching lines @@
 private:
     sk_sp<SkImage> fBitmap, fCheckerboard;
 
     typedef GM INHERITED;
 };
 
 //////////////////////////////////////////////////////////////////////////////
 
 DEF_GM(return new TileImageFilterGM;)
 }