Make SkStream *not* ref counted.

include/utils/mac/SkCGUtils.h

 
 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 #ifndef SkCGUtils_DEFINED
 #define SkCGUtils_DEFINED
 
@@ skipping 44 matching lines @@
 }
 
 /**
  *  Draw the bitmap into the specified CG context. The bitmap will be converted
  *  to a CGImage using the generic RGB colorspace. (x,y) specifies the position
  *  of the top-left corner of the bitmap. The bitmap is converted using the
  *  colorspace returned by CGColorSpaceCreateDeviceRGB()
  */
 void SkCGDrawBitmap(CGContextRef, const SkBitmap&, float x, float y);
 
+/**
+ *  Create an SkBitmap drawing of the encoded PDF document, returning true on
+ *  success. Deletes the stream when finished.
+ */
 bool SkPDFDocumentToBitmap(SkStream* stream, SkBitmap* output);
 
 /**
- *  Return a provider that wraps the specified stream. It will become an
- *  owner of the stream, so the caller must still manage its ownership.
+ *  Return a provider that wraps the specified stream. It will become the only
+ *  owner of the stream, so the caller must stop referring to the stream.
  *
- *  To hand-off ownership of the stream to the provider, the caller must do
- *  something like the following:
- *
- *  SkStream* stream = new ...;
- *  CGDataProviderRef provider = SkStreamToDataProvider(stream);
- *  stream->unref();
- *
- *  Now when the provider is finally deleted, it will delete the stream.
+ *  When the provider is finally deleted, it will delete the stream.
  */
 CGDataProviderRef SkCreateDataProviderFromStream(SkStream*);
 
 CGDataProviderRef SkCreateDataProviderFromData(SkData*);
 
 #endif