Update SkImageSource to sk_sp

src/effects/SkImageSource.cpp

Index: src/effects/SkImageSource.cpp
diff --git a/src/effects/SkImageSource.cpp b/src/effects/SkImageSource.cpp
index f095df69a8e5458c45187c13b8da8ab59e515e87..1e5e8dce33361a3ef704bd81529f48675277b0fa 100644
--- a/src/effects/SkImageSource.cpp
+++ b/src/effects/SkImageSource.cpp
@@ -15,30 +15,20 @@
 #include "SkWriteBuffer.h"
 #include "SkString.h"
 
-SkImageFilter* SkImageSource::Create(SkImage* image) {
-    return image ? new SkImageSource(image) : nullptr;
-}
-
-SkImageFilter* SkImageSource::Create(SkImage* image,
-                                     const SkRect& srcRect,
-                                     const SkRect& dstRect,
-                                     SkFilterQuality filterQuality) {
-    return image ? new SkImageSource(image, srcRect, dstRect, filterQuality) : nullptr;
-}
 
-SkImageSource::SkImageSource(SkImage* image)
+SkImageSource::SkImageSource(sk_sp<SkImage> image)
     : INHERITED(0, nullptr)
-    , fImage(SkRef(image))
+    , fImage(image)

[f(malita), 2016/03/31 13:09:15]

move image?

[robertphillips, 2016/03/31 14:35:09]

Done.

     , fSrcRect(SkRect::MakeIWH(image->width(), image->height()))
     , fDstRect(fSrcRect)
     , fFilterQuality(kHigh_SkFilterQuality) { }
 
-SkImageSource::SkImageSource(SkImage* image,
+SkImageSource::SkImageSource(sk_sp<SkImage> image,
                              const SkRect& srcRect,
                              const SkRect& dstRect,
                              SkFilterQuality filterQuality)
     : INHERITED(0, nullptr)
-    , fImage(SkRef(image))
+    , fImage(image)

[f(malita), 2016/03/31 13:09:15]

move image?

[robertphillips, 2016/03/31 14:35:09]

Done.

     , fSrcRect(srcRect)
     , fDstRect(dstRect)
     , fFilterQuality(filterQuality) { }
@@ -50,12 +40,12 @@ SkFlattenable* SkImageSource::CreateProc(SkReadBuffer& buffer) {
     buffer.readRect(&src);
     buffer.readRect(&dst);
 
-    SkAutoTUnref<SkImage> image(buffer.readImage());
+    sk_sp<SkImage> image(buffer.readImage());
     if (!image) {
         return nullptr;
     }
 
-    return SkImageSource::Create(image, src, dst, filterQuality);
+    return SkImageSource::Make(std::move(image), src, dst, filterQuality).release();
 }
 
 void SkImageSource::flatten(SkWriteBuffer& buffer) const {