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      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_
     32