Initial import attempt, just to play with. Many things disabled/removed

ui/cc/cc/CCFontAtlas.h

Index: ui/cc/cc/CCFontAtlas.h
diff --git a/ui/cc/cc/CCFontAtlas.h b/ui/cc/cc/CCFontAtlas.h
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index 0000000000000000000000000000000000000000..ce717ae1dadfe4af9cea370166734acd53c3a217
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+++ b/ui/cc/cc/CCFontAtlas.h
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+/*
+ * Copyright (C) 2012 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:
+ * 1.  Redistributions of source code must retain the above copyright
+ *     notice, this list of conditions and the following disclaimer.
+ * 2.  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 APPLE INC. AND ITS 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 APPLE INC. OR ITS 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 CCFontAtlas_h
+#define CCFontAtlas_h
+
+#if USE(ACCELERATED_COMPOSITING)
+
+//#include "ImageBuffer.h"
+#include <wtf/OwnPtr.h>
+#include <wtf/PassOwnPtr.h>
+#include <wtf/text/WTFString.h>
+
+namespace WebCore {
+
+class Color;
+class FontDescription;
+class IntPoint;
+class IntRect;
+class GraphicsContext;
+
+// This class provides basic ability to draw text onto the heads-up display.
+// It must be initialized on the main thread, and it can only draw text on the impl thread.
+class CCFontAtlas {
+    WTF_MAKE_NONCOPYABLE(CCFontAtlas);
+public:
+    static PassOwnPtr<CCFontAtlas> create()
+    {
+        return adoptPtr(new CCFontAtlas());
+    }
+
+    CCFontAtlas() { }
+
+    // Creates the font atlas.
+    // - Should only be called on the main thread.
+    void initialize() { }
+#if 0
+
+    // Draws multiple lines of text where each line of text is separated by '\n'.
+    // - Correct glyphs will be drawn for ASCII codes in the range 32-127; any characters
+    //   outside that range will be displayed as a default rectangle glyph.
+    // - IntSize clip is used to avoid wasting time drawing things that are outside the
+    //   target canvas bounds.
+    // - Should only be called only on the impl thread.
+    void drawText(GraphicsContext*, const String& text, const IntPoint& destPosition, const IntSize& clip) const;
+
+    // Draws the entire atlas at the specified position, just for debugging purposes.
+    void drawDebugAtlas(GraphicsContext*, const IntPoint& destPosition) const;
+
+private:
+    CCFontAtlas();
+
+    // Paints the font into the atlas, from left-to-right, top-to-bottom, starting at
+    // startingPosition. At the same time, it updates the ascii-to-IntRect mapping for
+    // each character. By doing things this way, it is possible to support variable-width
+    // fonts and multiple fonts on the same atlas.
+    void generateAtlasForFont(GraphicsContext*, const FontDescription&, const Color& fontColor, const IntPoint& startingPosition, IntRect asciiToAtlasTable[128]);
+
+    void drawOneLineOfTextInternal(GraphicsContext*, const String&, const IntPoint& destPosition) const;
+
+    // The actual texture atlas containing all the pre-rendered glyphs.
+    //OwnPtr<ImageBuffer> m_atlas;
+
+    // The look-up tables mapping ascii characters to their IntRect locations on the atlas.
+    IntRect m_asciiToRectTable[128];
+
+    int m_fontHeight;
+#endif
+};
+
+} // namespace WebCore
+
+#endif // USE(ACCELERATED_COMPOSITING)
+
+#endif