Remove SkImageRef and related functionality.

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(const SkImageInfo&, SkStreamRewindable*,
-                          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();
-
-    /** Set a new budget value for the cache.
-     */
-    static void SetRAMBudget(size_t);
-
-    /** Return how much ram is currently in use by the global cache.
-     */
-    static size_t GetRAMUsed();
-
-    /** Free up (approximately) enough such that the amount used by the cache
-     is <= the specified amount. Since some images may be "in use", the
-     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, SkStreamRewindable* stream,
-                          SkBitmap* bitmap, SkBitmap::Config config,
-                          SkImageDecoder::Mode mode);
-
-    virtual void onUnlockPixels();
-
-    SkImageRef_GlobalPool(SkReadBuffer&);
-
-private:
-    typedef SkImageRef INHERITED;
-};
-
-#endif