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diff --git a/WebCore/platform/graphics/chromium/GLES2Canvas.h b/WebCore/platform/graphics/chromium/GLES2Canvas.h
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+++ b/WebCore/platform/graphics/chromium/GLES2Canvas.h
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+/*
+ * Copyright (c) 2010, 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:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * 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.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "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 THE COPYRIGHT
+ * OWNER 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 GLES2Canvas_h
+#define GLES2Canvas_h
+
+#if USE(GLES2_RENDERING)
+
+#include "AffineTransform.h"
+#include "Color.h"
+#include "ColorSpace.h"
+#include "GLES2Texture.h"
+#include "GraphicsTypes.h"
+#include "ImageSource.h"
+
+#include <wtf/HashMap.h>
+#include <wtf/Noncopyable.h>
+
+namespace WebCore {
+
+class FloatRect;
+class Color;
+class GLES2Context;
+
+typedef HashMap<NativeImagePtr, RefPtr<GLES2Texture> > TextureHashMap;
+
+class GLES2Canvas : public Noncopyable {
+public:
+    GLES2Canvas(GLES2Context*, const IntSize&);
+    ~GLES2Canvas();
+
+    void fillRect(const FloatRect&, const Color&, ColorSpace);
+    void fillRect(const FloatRect&);
+    void clearRect(const FloatRect&);
+    void setFillColor(const Color&, ColorSpace);
+    void setAlpha(float alpha);
+    void setCompositeOperation(CompositeOperator);
+    void translate(float x, float y);
+    void rotate(float angleInRadians);
+    void scale(const FloatSize&);
+    void concatCTM(const AffineTransform&);
+
+    void save();
+    void restore();
+
+    // non-standard functions
+    // These are not standard GraphicsContext functions, and should be pushed
+    // down into a PlatformContextGLES2 at some point.
+    void drawTexturedRect(GLES2Texture*, const FloatRect& srcRect, const FloatRect& dstRect, const AffineTransform&, float alpha, ColorSpace, CompositeOperator);
+    void drawTexturedRect(GLES2Texture*, const FloatRect& srcRect, const FloatRect& dstRect, ColorSpace, CompositeOperator);
+    GLES2Context* gles2Context() { return m_gles2Context; }
+    GLES2Texture* createTexture(NativeImagePtr, GLES2Texture::Format, int width, int height);
+    GLES2Texture* getTexture(NativeImagePtr);
+
+private:
+    void applyCompositeOperator(CompositeOperator);
+    void checkGLError(const char* header);
+    unsigned getQuadVertices();
+    unsigned getQuadIndices();
+    unsigned getSimpleProgram();
+    unsigned getTexProgram();
+
+    GLES2Context* m_gles2Context;
+    struct State;
+    WTF::Vector<State> m_stateStack;
+    State* m_state;
+    unsigned m_quadVertices;
+    unsigned m_quadIndices;
+    unsigned m_simpleProgram;
+    unsigned m_texProgram;
+    int m_simpleMatrixLocation;
+    int m_simpleColorLocation;
+    int m_simplePositionLocation;
+    int m_texMatrixLocation;
+    int m_texTexMatrixLocation;
+    int m_texSamplerLocation;
+    int m_texAlphaLocation;
+    int m_texPositionLocation;
+    AffineTransform m_flipMatrix;
+    TextureHashMap m_textures;
+    CompositeOperator m_lastCompositeOp; // This is the one last set, not necessarily the one in the state stack.
+};
+
+}
+
+#endif
+
+#endif // GLES2Canvas_h