Change (Pass)RefPtr<SkXxx> into sk_sp<SkXxx>.

third_party/WebKit/Source/platform/graphics/skia/SkiaUtils.h

 /*
  * Copyright (c) 2006,2007,2008, Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 125 matching lines @@
 
 // TODO(fmalita): remove in favor of direct SrcRectConstraint use.
 inline SkCanvas::SrcRectConstraint WebCoreClampingModeToSkiaRectConstraint(Image::ImageClampingMode clampMode)
 {
     return clampMode == Image::ClampImageToSourceRect
         ? SkCanvas::kStrict_SrcRectConstraint
         : SkCanvas::kFast_SrcRectConstraint;
 }
 
 // Skia's smart pointer APIs are preferable over their legacy raw pointer counterparts.
-// The following helpers ensure interoperability between Skia's SkRefCnt wrapper sk_sp<T> and
-// Blink's RefPtr<T>/PassRefPtr<T>.
-//
-//   - fromSkSp(sk_sp<T>):       adopts an sk_sp into a PassRefPtr (to be used when transferring
-//                               ownership from Skia to Blink).
-//   - toSkSp(PassRefPtr<T>):    releases a PassRefPtr into a sk_sp (to be used when transferring
-//                               ownership from Blink to Skia).
-//   - toSkSp(const RefPtr<T>&): shares a RefPtr as a new sk_sp (to be used when sharing
-//                               ownership).
 //
 // General guidelines
 //
 // When receiving ref counted objects from Skia:
 //
 //   1) use sk_sp-based Skia factories if available (e.g. SkShader::MakeFoo() instead of
 //      SkShader::CreateFoo())
 //
-//   2) use sk_sp<T> locals for temporary objects (to be immediately transferred back to Skia)
-//
-//   3) use RefPtr<T>/PassRefPtr<T> for objects to be retained in Blink, use
-//      fromSkSp(sk_sp<T>) to convert
+//   2) use sk_sp<T> locals for all objects
 //
 // When passing ref counted objects to Skia:
 //
-//   1) use sk_sk-based Skia APIs when available (e.g. SkPaint::setShader(sk_sp<SkShader>)
+//   1) use sk_sp-based Skia APIs when available (e.g. SkPaint::setShader(sk_sp<SkShader>)
 //      instead of SkPaint::setShader(SkShader*))
 //
-//   2) if the object ownership is being passed to Skia, use std::move(sk_sp<T>) or
-//      toSkSp(PassRefPtr<T>) to transfer without refcount churn
-//
-//   3) if the object ownership is shared with Skia (Blink retains a reference), use
-//      toSkSp(const RefPtr<T>&)
+//   2) if the object ownership is being passed to Skia, use std::move(sk_sp<T>)
 //
 // Example (creating a SkShader and setting it on SkPaint):
 //
-// a) legacy/old style
-//
-//     RefPtr<SkShader> shader = adoptRef(SkShader::CreateFoo(...));
-//     paint.setShader(shader.get());
-//
-//  (Note: the legacy approach introduces refcount churn as Skia grabs a ref while Blink is
-//   temporarily holding on to its own)
-//
-// b) new style, ownership transferred
+// a) ownership transferred
 //
 //     // using Skia smart pointer locals
 //     sk_sp<SkShader> shader = SkShader::MakeFoo(...);
 //     paint.setShader(std::move(shader));
 //
-//     // using Blink smart pointer locals
-//     RefPtr<SkShader> shader = fromSkSp(SkShader::MakeFoo(...));
-//     paint.setShader(toSkSp(shader.release());
-//
 //     // using no locals
 //     paint.setShader(SkShader::MakeFoo(...));
 //
-// c) new style, shared ownership
+// b) shared ownership
 //
-//     RefPtr<SkShader> shader = fromSkSp(SkShader::MakeFoo(...));
-//     paint.setShader(toSkSp(shader));
-//
-template <typename T> PassRefPtr<T> fromSkSp(sk_sp<T> sp)
-{
-    return adoptRef(sp.release());
-}
-
-template <typename T> sk_sp<T> toSkSp(PassRefPtr<T> ref)
-{
-    return sk_sp<T>(ref.leakRef());
-}
-
-template <typename T> sk_sp<T> toSkSp(const RefPtr<T>& ref)
-{
-    return toSkSp(PassRefPtr<T>(ref));
-}
+//     sk_sp<SkShader> shader = SkShader::MakeFoo(...);
+//     paint.setShader(shader);
 
 } // namespace blink
 
 #endif  // SkiaUtils_h