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/scoped_ptr.h"
   9 #include "third_party/skia/src/core/SkDiscardableMemory.h"
  10
  11 namespace base {
  12 class DiscardableMemory;
  13
  14 namespace trace_event {
  15 class MemoryAllocatorDump;
  16 class ProcessMemoryDump;
  17 }
  18
  19 }  // namespace base
  20
  21 // This class implements the SkDiscardableMemory interface using
  22 // base::DiscardableMemory.
  23 class SK_API SkDiscardableMemoryChrome : public SkDiscardableMemory {
  24 public:
  25  ~SkDiscardableMemoryChrome() override;
  26
  27   // SkDiscardableMemory:
  28  bool lock() override;
  29  void* data() override;
  30  void unlock() override;
  31
  32  base::trace_event::MemoryAllocatorDump* CreateMemoryAllocatorDump(
  33      const char* name,
  34      base::trace_event::ProcessMemoryDump* pmd) const;
  35
  36 private:
  37   friend class SkDiscardableMemory;
  38
  39   SkDiscardableMemoryChrome(scoped_ptr<base::DiscardableMemory> memory);
  40
  41   scoped_ptr<base::DiscardableMemory> discardable_;
  42 };
  43
  44 #endif  // SKIA_EXT_SK_DISCARDABLE_MEMORY_CHROME_H_