add roundOut that returns its result

src/core/SkScan_Hairline.cpp

 
 /*
  * 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.
  */
 
 
 #include "SkScan.h"
@@ skipping 359 matching lines @@
     SkScan::FillRect(tmp, clip, blitter);
 }
 
 void SkScan::HairLine(const SkPoint& p0, const SkPoint& p1,
                       const SkRasterClip& clip, SkBlitter* blitter) {
     if (clip.isBW()) {
         HairLineRgn(p0, p1, &clip.bwRgn(), blitter);
     } else {
         const SkRegion* clipRgn = NULL;
         SkRect r;
-        SkIRect ir;
         r.set(p0.fX, p0.fY, p1.fX, p1.fY);
         r.sort();
         r.inset(-SK_ScalarHalf, -SK_ScalarHalf);
-        r.roundOut(&ir);
 
         SkAAClipBlitterWrapper wrap;
-        if (!clip.quickContains(ir)) {
+        if (!clip.quickContains(r.roundOut())) {
             wrap.init(clip, blitter);
             blitter = wrap.getBlitter();
             clipRgn = &wrap.getRgn();
         }
         HairLineRgn(p0, p1, clipRgn, blitter);
     }
 }
 
 void SkScan::AntiHairLine(const SkPoint& p0, const SkPoint& p1,
                           const SkRasterClip& clip, SkBlitter* blitter) {
@@ skipping 10 matching lines @@
 
         SkAAClipBlitterWrapper wrap;
         if (!clip.quickContains(ir)) {
             wrap.init(clip, blitter);
             blitter = wrap.getBlitter();
             clipRgn = &wrap.getRgn();
         }
         AntiHairLineRgn(p0, p1, clipRgn, blitter);
     }
 }