Eliminate copies of encoded image data

third_party/WebKit/Source/platform/graphics/ThreadSafeDataTransport.h

Index: third_party/WebKit/Source/platform/graphics/ThreadSafeDataTransport.h
diff --git a/third_party/WebKit/Source/platform/graphics/ThreadSafeDataTransport.h b/third_party/WebKit/Source/platform/graphics/ThreadSafeDataTransport.h
deleted file mode 100644
index 3aae9477b99af41fe65a01a3fb3f524f5cb824ba..0000000000000000000000000000000000000000
--- a/third_party/WebKit/Source/platform/graphics/ThreadSafeDataTransport.h
+++ /dev/null
@@ -1,78 +0,0 @@
-/*
- * Copyright (C) 2012 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 COMPUTER, 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 COMPUTER, 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 ThreadSafeDataTransport_h
-#define ThreadSafeDataTransport_h
-
-#include "platform/PlatformExport.h"
-#include "wtf/Allocator.h"
-#include "wtf/Noncopyable.h"
-#include "wtf/OwnPtr.h"
-#include "wtf/PassOwnPtr.h"
-#include "wtf/RefPtr.h"
-#include "wtf/ThreadSafeRefCounted.h"
-#include "wtf/ThreadingPrimitives.h"
-#include "wtf/Vector.h"
-
-namespace blink {
-
-class SharedBuffer;
-
-// The purpose of this class is to allow the transfer of data stored in
-// SharedBuffer in a thread-safe manner, and to minimize memory copies
-// and thread contention.
-//
-// This class is designed such that there is only one producer and
-// one consumer.
-
-class PLATFORM_EXPORT ThreadSafeDataTransport final : public ThreadSafeRefCounted<ThreadSafeDataTransport> {
-    WTF_MAKE_NONCOPYABLE(ThreadSafeDataTransport);
-public:
-    ThreadSafeDataTransport();
-    ~ThreadSafeDataTransport();
-
-    // This method is being called subsequently with an expanding
-    // SharedBuffer.
-    void setData(SharedBuffer*, bool allDataReceived);
-
-    // Get the data submitted to this class so far.
-    void data(SharedBuffer**, bool* allDataReceived);
-
-    // Return true of there is new data submitted to this class
-    // since last time data() was called.
-    bool hasNewData();
-
-private:
-    Mutex m_mutex;
-
-    Vector<RefPtr<SharedBuffer>> m_newBufferQueue;
-    RefPtr<SharedBuffer> m_readBuffer;
-    bool m_allDataReceived;
-    size_t m_readPosition;
-};
-
-} // namespace blink
-
-#endif