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diff --git a/ANGLE/src/libGLESv2/geometry/IndexDataManager.h b/ANGLE/src/libGLESv2/geometry/IndexDataManager.h
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+++ b/ANGLE/src/libGLESv2/geometry/IndexDataManager.h
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+//
+// Copyright (c) 2002-2010 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.
+//
+
+// geometry/IndexDataManager.h: Defines the IndexDataManager, a class that
+// runs the Buffer translation process for index buffers.
+
+#ifndef LIBGLESV2_GEOMETRY_INDEXDATAMANAGER_H_
+#define LIBGLESV2_GEOMETRY_INDEXDATAMANAGER_H_
+
+#include <bitset>
+#include <cstddef>
+
+#define GL_APICALL
+#include <GLES2/gl2.h>
+
+#include "libGLESv2/Context.h"
+
+namespace gl
+{
+
+class Buffer;
+class BufferBackEnd;
+class TranslatedIndexBuffer;
+struct FormatConverter;
+
+struct TranslatedIndexData
+{
+    GLuint minIndex;
+    GLuint maxIndex;
+    GLuint count;
+    GLuint indexSize;
+
+    TranslatedIndexBuffer *buffer;
+    GLsizei offset;
+};
+
+class IndexDataManager
+{
+  public:
+    IndexDataManager(Context *context, BufferBackEnd *backend);
+    ~IndexDataManager();
+
+    GLenum preRenderValidate(GLenum mode, GLenum type, GLsizei count, Buffer *arrayElementBuffer, const void *indices, TranslatedIndexData *translated);
+    GLenum preRenderValidateUnindexed(GLenum mode, GLsizei count, TranslatedIndexData *indexInfo);
+
+  private:
+    std::size_t IndexDataManager::typeSize(GLenum type) const;
+    std::size_t IndexDataManager::indexSize(GLenum type) const;
+    std::size_t spaceRequired(GLenum type, GLsizei count) const;
+    TranslatedIndexBuffer *prepareIndexBuffer(GLenum type, std::size_t requiredSpace);
+
+    Context *mContext;
+    BufferBackEnd *mBackend;
+
+    bool mIntIndicesSupported;
+
+    TranslatedIndexBuffer *mStreamBufferShort;
+    TranslatedIndexBuffer *mStreamBufferInt;
+
+    TranslatedIndexBuffer *mCountingBuffer;
+    GLsizei mCountingBufferSize;
+
+    TranslatedIndexBuffer *mLineLoopBuffer;
+};
+
+}
+
+#endif   // LIBGLESV2_GEOMETRY_INDEXDATAMANAGER_H_