change flattenable factory to return sk_sp

src/effects/SkDisplacementMapEffect.cpp

Index: src/effects/SkDisplacementMapEffect.cpp
diff --git a/src/effects/SkDisplacementMapEffect.cpp b/src/effects/SkDisplacementMapEffect.cpp
index d054e58e51f2a416730fd3bafb09d0c0e1a2db25..7458c746ae53f18f2d33c6e704ab858a62f18165 100644
--- a/src/effects/SkDisplacementMapEffect.cpp
+++ b/src/effects/SkDisplacementMapEffect.cpp
@@ -195,13 +195,13 @@ SkDisplacementMapEffect::SkDisplacementMapEffect(ChannelSelectorType xChannelSel
 SkDisplacementMapEffect::~SkDisplacementMapEffect() {
 }
 
-SkFlattenable* SkDisplacementMapEffect::CreateProc(SkReadBuffer& buffer) {
+sk_sp<SkFlattenable> SkDisplacementMapEffect::CreateProc(SkReadBuffer& buffer) {
     SK_IMAGEFILTER_UNFLATTEN_COMMON(common, 2);
     ChannelSelectorType xsel = (ChannelSelectorType)buffer.readInt();
     ChannelSelectorType ysel = (ChannelSelectorType)buffer.readInt();
     SkScalar scale = buffer.readScalar();
-    return Create(xsel, ysel, scale,
-                  common.getInput(0).get(), common.getInput(1).get(), &common.cropRect());
+    return sk_sp<SkFlattenable>(Create(xsel, ysel, scale,
+                  common.getInput(0).get(), common.getInput(1).get(), &common.cropRect()));

[f(malita), 2016/04/03 14:53:21]

nit: indentation

[reed1, 2016/04/03 15:58:34]

Done.

 }
 
 void SkDisplacementMapEffect::flatten(SkWriteBuffer& buffer) const {