diff options
Diffstat (limited to 'chromium/third_party/WebKit/Source/platform/PurgeableBuffer.h')
-rw-r--r-- | chromium/third_party/WebKit/Source/platform/PurgeableBuffer.h | 72 |
1 files changed, 0 insertions, 72 deletions
diff --git a/chromium/third_party/WebKit/Source/platform/PurgeableBuffer.h b/chromium/third_party/WebKit/Source/platform/PurgeableBuffer.h deleted file mode 100644 index 7d058737d08..00000000000 --- a/chromium/third_party/WebKit/Source/platform/PurgeableBuffer.h +++ /dev/null @@ -1,72 +0,0 @@ -/* - * Copyright (C) 2008, 2010 Apple Inc. All Rights Reserved. - * Copyright (C) 2013 Google Inc. All Rights Reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY - * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR - * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR - * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, - * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR - * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY - * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ - -#ifndef PurgeableBuffer_h -#define PurgeableBuffer_h - -#include "wtf/OwnPtr.h" -#include "wtf/PassOwnPtr.h" -#include "platform/PlatformExport.h" - -namespace blink { -class WebDiscardableMemory; -} - -namespace WebCore { - -class PLATFORM_EXPORT PurgeableBuffer { - WTF_MAKE_NONCOPYABLE(PurgeableBuffer); -public: - static PassOwnPtr<PurgeableBuffer> create(const char* data, size_t); - ~PurgeableBuffer(); - - // Call lock and check the return value before accessing the data. - const char* data() const; - size_t size() const { return m_size; } - - bool isPurgeable() const { return m_state != Locked; } - bool wasPurged() const; - - bool lock(); - void unlock(); - -private: - enum State { - Locked, - Unlocked, - Purged - }; - - PurgeableBuffer(PassOwnPtr<blink::WebDiscardableMemory>, const char* data, size_t); - - OwnPtr<blink::WebDiscardableMemory> m_memory; - size_t m_size; - State m_state; -}; - -} - -#endif |