diff -r 000000000000 -r 6474c204b198 gfx/angle/src/libGLESv2/renderer/BufferStorage11.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gfx/angle/src/libGLESv2/renderer/BufferStorage11.h	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,56 @@
+//
+// Copyright (c) 2013 The ANGLE Project Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+//
+
+// BufferStorage11.h Defines the BufferStorage11 class.
+
+#ifndef LIBGLESV2_RENDERER_BUFFERSTORAGE11_H_
+#define LIBGLESV2_RENDERER_BUFFERSTORAGE11_H_
+
+#include "libGLESv2/renderer/BufferStorage.h"
+
+namespace rx
+{
+class Renderer11;
+
+class BufferStorage11 : public BufferStorage
+{
+  public:
+    explicit BufferStorage11(Renderer11 *renderer);
+    virtual ~BufferStorage11();
+
+    static BufferStorage11 *makeBufferStorage11(BufferStorage *bufferStorage);
+
+    virtual void *getData();
+    virtual void setData(const void* data, unsigned int size, unsigned int offset);
+    virtual void clear();
+    virtual unsigned int getSize() const;
+    virtual bool supportsDirectBinding() const;
+    virtual void markBufferUsage();
+
+    ID3D11Buffer *getBuffer() const;
+
+  private:
+    Renderer11 *mRenderer;
+
+    ID3D11Buffer *mStagingBuffer;
+    unsigned int mStagingBufferSize;
+
+    ID3D11Buffer *mBuffer;
+    unsigned int mBufferSize;
+
+    unsigned int mSize;
+
+    void *mResolvedData;
+    unsigned int mResolvedDataSize;
+    bool mResolvedDataValid;
+
+    unsigned int mReadUsageCount;
+    unsigned int mWriteUsageCount;
+};
+
+}
+
+#endif // LIBGLESV2_RENDERER_BUFFERSTORAGE11_H_