skia/ext/SkDiscardableMemory_chrome.h

   1 // Copyright 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef SKIA_EXT_SK_DISCARDABLE_MEMORY_CHROME_H_
   6 #define SKIA_EXT_SK_DISCARDABLE_MEMORY_CHROME_H_
   7
   8 #include "base/memory/discardable_memory.h"
   9 #include "base/memory/scoped_ptr.h"
  10 #include "third_party/skia/src/core/SkDiscardableMemory.h"
  11
  12 // This class implements the SkDiscardableMemory interface using
  13 // base::DiscardableMemory.
  14 class SK_API SkDiscardableMemoryChrome : public SkDiscardableMemory {
  15 public:
  16   virtual ~SkDiscardableMemoryChrome();
  17
  18   // SkDiscardableMemory:
  19   virtual bool lock() OVERRIDE;
  20   virtual void* data() OVERRIDE;
  21   virtual void unlock() OVERRIDE;
  22
  23 private:
  24   friend class SkDiscardableMemory;
  25
  26   SkDiscardableMemoryChrome(scoped_ptr<base::DiscardableMemory> memory);
  27
  28   scoped_ptr<base::DiscardableMemory> discardable_;
  29 };
  30
  31 #endif  // SKIA_EXT_SK_DISCARDABLE_MEMORY_CHROME_H_