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diff --git a/WebCore/platform/graphics/android/BaseTile.h b/WebCore/platform/graphics/android/BaseTile.h
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+++ b/WebCore/platform/graphics/android/BaseTile.h
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+/*
+ * Copyright 2010, The Android Open Source Project
+ *
+ * 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``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 BaseTile_h
+#define BaseTile_h
+
+#if USE(ACCELERATED_COMPOSITING)
+
+#include "BackedDoubleBufferedTexture.h"
+#include "HashMap.h"
+#include "SkBitmap.h"
+#include "SkCanvas.h"
+#include "SkRect.h"
+
+#include <EGL/egl.h>
+#include <EGL/eglext.h>
+#include <GLES2/gl2.h>
+
+namespace WebCore {
+
+class TiledPage;
+
+class BaseTile {
+public:
+#ifdef DEBUG_COUNT
+    static int count();
+#endif
+    BaseTile(TiledPage* page, int x, int y, int quality = 1);
+    ~BaseTile();
+
+    void reserveTexture();
+    void removeTexture();
+    void setUsedLevel(int);
+    bool paintBitmap();
+    bool isBitmapReady();
+    float scale() const { return m_scale; }
+    void setScale(float scale) { m_scale = scale; }
+    void draw(float transparency, SkRect& rect);
+    TiledPage* page() { return m_page; }
+    int quality() const { return m_quality; }
+    int x() const { return m_x; }
+    int y() const { return m_y; }
+    BackedDoubleBufferedTexture* texture() { return m_texture; }
+
+private:
+    TiledPage* m_page;
+    BackedDoubleBufferedTexture* m_texture;
+    int m_x;
+    int m_y;
+    int m_quality;
+    float m_scale;
+    android::Mutex m_varLock;
+};
+
+typedef std::pair<int, int> TileKey;
+typedef HashMap<TileKey, BaseTile*> TileMap;
+
+} // namespace WebCore
+
+#endif // USE(ACCELERATED_COMPOSITING)
+#endif // BaseTile_h