Change SkImageDecoders to take an SkStreamRewindable.

include/images/SkImageRef_GlobalPool.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_GlobalPool_DEFINED
 #define SkImageRef_GlobalPool_DEFINED
 
 #include "SkImageRef.h"
 
 class SkImageRef_GlobalPool : public SkImageRef {
 public:
     // if pool is null, use the global pool
-    SkImageRef_GlobalPool(SkStream*, SkBitmap::Config, int sampleSize = 1);
+    SkImageRef_GlobalPool(SkStreamRewindable*, SkBitmap::Config,
+                          int sampleSize = 1);
     virtual ~SkImageRef_GlobalPool();
 
     SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkImageRef_GlobalPool)
 
     // API to control the global pool
 
     /** Return the amount specified as the budget for the cache (in bytes).
      */
     static size_t GetRAMBudget();
 
@@ skipping 10 matching lines @@
      amount actually freed may not always result in a ram usage value <=
      to the requested amount. In addition, because of the
      chunky nature of the cache, the resulting usage may be < the requested
      amount.
      */
     static void SetRAMUsed(size_t usageInBytes);
 
     static void DumpPool();
 
 protected:
-    virtual bool onDecode(SkImageDecoder* codec, SkStream* stream,
+    virtual bool onDecode(SkImageDecoder* codec, SkStreamRewindable* stream,
                           SkBitmap* bitmap, SkBitmap::Config config,
                           SkImageDecoder::Mode mode);
 
     virtual void onUnlockPixels();
 
     SkImageRef_GlobalPool(SkFlattenableReadBuffer&);
 
 private:
     typedef SkImageRef INHERITED;
 };
 
 #endif