Purge SkPurgeableMemoryBlock.

src/lazy/SkPurgeableMemoryBlock.h

Index: src/lazy/SkPurgeableMemoryBlock.h
diff --git a/src/lazy/SkPurgeableMemoryBlock.h b/src/lazy/SkPurgeableMemoryBlock.h
deleted file mode 100644
index 1750ad9d6cd59029aca960dcb92282c9f7ae8393..0000000000000000000000000000000000000000
--- a/src/lazy/SkPurgeableMemoryBlock.h
+++ /dev/null
@@ -1,94 +0,0 @@
-/*
- * Copyright 2013 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-#ifndef SkPurgeableMemoryBlock_DEFINED
-#define SkPurgeableMemoryBlock_DEFINED
-
-#include "SkTypes.h"
-
-class SkPurgeableMemoryBlock : public SkNoncopyable {
-
-public:
-    /**
-     *  Whether or not this platform has an implementation for purgeable memory.
-     */
-    static bool IsSupported();
-
-    /**
-     *  Create a new purgeable memory block of 'size' bytes. Returns NULL if not supported on this
-     *  platform or on failure.
-     *  @param size Number of bytes requested.
-     *  @return A new block, or NULL on failure.
-     */
-    static SkPurgeableMemoryBlock* Create(size_t size);
-
-#ifdef SK_DEBUG
-    /**
-     *  Whether the platform supports one shot purge of all unpinned blocks. If so,
-     *  PurgeAllUnpinnedBlocks will be used to test a purge. Otherwise, purge will be called on
-     *  individual blocks.
-     */
-    static bool PlatformSupportsPurgingAllUnpinnedBlocks();
-
-    /**
-     *  Purge all unpinned blocks at once, if the platform supports it.
-     */
-    static bool PurgeAllUnpinnedBlocks();
-
-    // If PlatformSupportsPurgingAllUnpinnedBlocks returns true, this will not be called, so it can
-    // simply return false.
-    bool purge();
-
-    bool isPinned() const { return fPinned; }
-#endif
-
-    ~SkPurgeableMemoryBlock();
-
-    /**
-     *  Output parameter for pin(), stating whether the data has been retained.
-     */
-    enum PinResult {
-        /**
-         *  The data has been purged, or this is the first call to pin.
-         */
-        kUninitialized_PinResult,
-
-        /**
-         *  The data has been retained. The memory contains the same data it held when unpin() was
-         *  called.
-         */
-        kRetained_PinResult,
-    };
-
-    /**
-     *  Pin the memory for use. Must not be called while already pinned.
-     *  @param PinResult Whether the data was retained. Ignored on failure.
-     *  @return Pointer to the pinned data on success. NULL on failure.
-     */
-    void* pin(PinResult*);
-
-    /**
-     *  Unpin the data so it can be purged if necessary.
-     */
-    void unpin();
-
-private:
-    void*       fAddr;
-    size_t      fSize;
-    bool        fPinned;
-#ifdef SK_BUILD_FOR_ANDROID
-    int         fFD;
-#endif
-
-    // Unimplemented default constructor is private, to prevent manual creation.
-    SkPurgeableMemoryBlock();
-
-    // The correct way to create a new one is from the static Create.
-    SkPurgeableMemoryBlock(size_t);
-};
-
-#endif // SkPurgeableMemoryBlock_DEFINED