Revert "Revert of https://codereview.chromium.org/108773003/"

include/images/SkImageRef.h

 
 /*
  * Copyright 2008 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 
 #ifndef SkImageRef_DEFINED
@@ skipping 16 matching lines @@
         since it may be accessed from another thread, the caller must ensure
         that this imageref is the only owner of the stream. i.e. - sole
         ownership of the stream object is transferred to this imageref object.
 
         @param stream The stream containing the encoded image data. This may be
                       retained (by calling ref()), so the caller should not
                       explicitly delete it.
         @param config The preferred config of the decoded bitmap.
         @param sampleSize Requested sampleSize for decoding. Defaults to 1.
     */
-    SkImageRef(SkStreamRewindable*, SkBitmap::Config config, int sampleSize = 1,
+    SkImageRef(const SkImageInfo&, SkStreamRewindable*, int sampleSize = 1,
                SkBaseMutex* mutex = NULL);
     virtual ~SkImageRef();
 
     /** this value is passed onto the decoder. Default is true
      */
     void setDitherImage(bool dither) { fDoDither = dither; }
 
     /** Return true if the image can be decoded. If so, and bitmap is non-null,
         call its setConfig() with the corresponding values, but explicitly will
         not set its pixels or colortable. Use SkPixelRef::lockPixels() for that.
@@ skipping 17 matching lines @@
     /** Override if you want to install a custom allocator.
         When this is called we will have already acquired the mutex!
     */
     virtual bool onDecode(SkImageDecoder* codec, SkStreamRewindable*, SkBitmap*,
                           SkBitmap::Config, SkImageDecoder::Mode);
 
     /*  Overrides from SkPixelRef
         When these are called, we will have already acquired the mutex!
      */
 
-    virtual void* onLockPixels(SkColorTable**);
+    virtual bool onNewLockPixels(LockRec*) SK_OVERRIDE;
     // override this in your subclass to clean up when we're unlocking pixels
-    virtual void onUnlockPixels() {}
+    virtual void onUnlockPixels() SK_OVERRIDE {}
 
     SkImageRef(SkFlattenableReadBuffer&, SkBaseMutex* mutex = NULL);
     virtual void flatten(SkFlattenableWriteBuffer&) const SK_OVERRIDE;
 
     SkBitmap fBitmap;
 
 private:
     SkStreamRewindable* setStream(SkStreamRewindable*);
     // called with mutex already held. returns true if the bitmap is in the
     // requested state (or further, i.e. has pixels)
     bool prepareBitmap(SkImageDecoder::Mode);
 
     SkImageDecoderFactory*  fFactory;    // may be null
     SkStreamRewindable*     fStream;
-    SkBitmap::Config        fConfig;
     int                     fSampleSize;
     bool                    fDoDither;
     bool                    fErrorInDecoding;
 
     friend class SkImageRefPool;
 
     SkImageRef*  fPrev, *fNext;
     size_t ramUsed() const;
 
     typedef SkPixelRef INHERITED;
 };
 
 #endif