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diff --git a/gfx/angle/src/libANGLE/renderer/d3d/IndexDataManager.h b/gfx/angle/src/libANGLE/renderer/d3d/IndexDataManager.h
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+++ b/gfx/angle/src/libANGLE/renderer/d3d/IndexDataManager.h
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+//
+// Copyright (c) 2002-2014 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.
+//
+
+// IndexDataManager.h: Defines the IndexDataManager, a class that
+// runs the Buffer translation process for index buffers.
+
+#ifndef LIBANGLE_INDEXDATAMANAGER_H_
+#define LIBANGLE_INDEXDATAMANAGER_H_
+
+#include <GLES2/gl2.h>
+
+#include "common/angleutils.h"
+#include "common/mathutil.h"
+#include "libANGLE/Error.h"
+#include "libANGLE/renderer/d3d/RendererD3D.h"
+
+namespace
+{
+ enum { INITIAL_INDEX_BUFFER_SIZE = 4096 * sizeof(GLuint) };
+}
+
+namespace gl
+{
+class Buffer;
+}
+
+namespace rx
+{
+class IndexBufferInterface;
+class StaticIndexBufferInterface;
+class StreamingIndexBufferInterface;
+class IndexBuffer;
+class BufferD3D;
+class RendererD3D;
+
+struct SourceIndexData
+{
+ BufferD3D *srcBuffer;
+ const GLvoid *srcIndices;
+ unsigned int srcCount;
+ GLenum srcIndexType;
+ bool srcIndicesChanged;
+};
+
+struct TranslatedIndexData
+{
+ gl::IndexRange indexRange;
+ unsigned int startIndex;
+ unsigned int startOffset; // In bytes
+
+ IndexBuffer *indexBuffer;
+ BufferD3D *storage;
+ GLenum indexType;
+ unsigned int serial;
+
+ SourceIndexData srcIndexData;
+};
+
+class IndexDataManager : angle::NonCopyable
+{
+ public:
+ explicit IndexDataManager(BufferFactoryD3D *factory, RendererClass rendererClass);
+ virtual ~IndexDataManager();
+
+ gl::Error prepareIndexData(GLenum srcType,
+ GLsizei count,
+ gl::Buffer *glBuffer,
+ const GLvoid *indices,
+ TranslatedIndexData *translated,
+ bool primitiveRestartFixedIndexEnabled);
+
+ private:
+ gl::Error streamIndexData(const GLvoid *data,
+ unsigned int count,
+ GLenum srcType,
+ GLenum dstType,
+ bool usePrimitiveRestartFixedIndex,
+ TranslatedIndexData *translated);
+ gl::Error getStreamingIndexBuffer(GLenum destinationIndexType,
+ IndexBufferInterface **outBuffer);
+
+ BufferFactoryD3D *const mFactory;
+ RendererClass mRendererClass;
+ StreamingIndexBufferInterface *mStreamingBufferShort;
+ StreamingIndexBufferInterface *mStreamingBufferInt;
+};
+
+}
+
+#endif // LIBANGLE_INDEXDATAMANAGER_H_