diff -r 000000000000 -r 6474c204b198 gfx/angle/src/libGLESv2/renderer/BufferStorage9.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gfx/angle/src/libGLESv2/renderer/BufferStorage9.cpp	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,78 @@
+#include "precompiled.h"
+//
+// 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.
+//
+
+// BufferStorage9.cpp Defines the BufferStorage9 class.
+
+#include "libGLESv2/renderer/BufferStorage9.h"
+#include "common/debug.h"
+
+namespace rx
+{
+
+BufferStorage9::BufferStorage9()
+{
+    mMemory = NULL;
+    mAllocatedSize = 0;
+    mSize = 0;
+}
+
+BufferStorage9::~BufferStorage9()
+{
+    delete[] mMemory;
+}
+
+BufferStorage9 *BufferStorage9::makeBufferStorage9(BufferStorage *bufferStorage)
+{
+    ASSERT(HAS_DYNAMIC_TYPE(BufferStorage9*, bufferStorage));
+    return static_cast<BufferStorage9*>(bufferStorage);
+}
+
+void *BufferStorage9::getData()
+{
+    return mMemory;
+}
+
+void BufferStorage9::setData(const void* data, unsigned int size, unsigned int offset)
+{
+    if (!mMemory || offset + size > mAllocatedSize)
+    {
+        unsigned int newAllocatedSize = offset + size;
+        void *newMemory = new char[newAllocatedSize];
+
+        if (offset > 0 && mMemory && mAllocatedSize > 0)
+        {
+            memcpy(newMemory, mMemory, std::min(offset, mAllocatedSize));
+        }
+
+        delete[] mMemory;
+        mMemory = newMemory;
+        mAllocatedSize = newAllocatedSize;
+    }
+
+    mSize = std::max(mSize, offset + size);
+    if (data)
+    {
+        memcpy(reinterpret_cast<char*>(mMemory) + offset, data, size);
+    }
+}
+
+void BufferStorage9::clear()
+{
+    mSize = 0;
+}
+
+unsigned int BufferStorage9::getSize() const
+{
+    return mSize;
+}
+
+bool BufferStorage9::supportsDirectBinding() const
+{
+    return false;
+}
+
+}