remove SkBounder -- unused and unloved

include/core/SkBounder.h

-
-/*
- * Copyright 2006 The Android Open Source Project
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-
-#ifndef SkBounder_DEFINED
-#define SkBounder_DEFINED
-
-#include "SkTypes.h"
-#include "SkRefCnt.h"
-#include "SkPoint.h"
-
-struct SkGlyph;
-struct SkIRect;
-struct SkPoint;
-struct SkRect;
-class SkPaint;
-class SkPath;
-class SkRegion;
-
-/** \class SkBounder
-
-    Base class for intercepting the device bounds of shapes before they are drawn.
-    Install a subclass of this in your canvas.
-*/
-class SkBounder : public SkRefCnt {
-public:
-    SK_DECLARE_INST_COUNT(SkBounder)
-
-    SkBounder();
-
-    /* Call to perform a clip test before calling onIRect.
-       Returns the result from onIRect.
-    */
-    bool doIRect(const SkIRect&);
-    bool doIRectGlyph(const SkIRect& , int x, int y, const SkGlyph&);
-
-protected:
-    /** Override in your subclass. This is called with the device bounds of an
-        object (text, geometry, image) just before it is drawn. If your method
-        returns false, the drawing for that shape is aborted. If your method
-        returns true, drawing continues. The bounds your method receives have already
-        been transformed in to device coordinates, and clipped to the current clip.
-    */
-    virtual bool onIRect(const SkIRect&) {
-        return false;
-    }
-
-    /** Passed to onIRectGlyph with the information about the current glyph.
-        LSB and RSB are fixed-point (16.16) coordinates of the start and end
-        of the glyph's advance
-     */
-    struct GlyphRec {
-        SkIPoint    fLSB;   //!< fixed-point left-side-bearing of the glyph
-        SkIPoint    fRSB;   //!< fixed-point right-side-bearing of the glyph
-        uint16_t    fGlyphID;
-        uint16_t    fFlags; //!< currently set to 0
-    };
-
-    /** Optionally, override in your subclass to receive the glyph ID when
-        text drawing supplies the device bounds of the object.
-    */
-    virtual bool onIRectGlyph(const SkIRect& r, const GlyphRec&) {
-        return onIRect(r);
-    }
-
-    /** Called after each shape has been drawn. The default implementation does
-        nothing, but your override could use this notification to signal itself
-        that the offscreen being rendered into needs to be updated to the screen.
-    */
-    virtual void commit();
-
-private:
-    bool doHairline(const SkPoint&, const SkPoint&, const SkPaint&);
-    bool doRect(const SkRect&, const SkPaint&);
-    bool doPath(const SkPath&, const SkPaint&, bool doFill);
-    void setClip(const SkRegion* clip) { fClip = clip; }
-
-    const SkRegion* fClip;
-    friend class SkAutoBounderCommit;
-    friend class SkDraw;
-    friend class SkDrawIter;
-    friend struct Draw1Glyph;
-    friend class SkMaskFilter;
-
-    typedef SkRefCnt INHERITED;
-};
-
-#endif