increase coverage of SkPath.cpp, remove unused code

gm/hittestpath.cpp

-/*
- * Copyright 2011 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-#include "gm.h"
-#include "SkCanvas.h"
-#include "SkCullPoints.h"
-#include "SkRandom.h"
-
-static void test_hittest(SkCanvas* canvas, const SkPath& path) {
-    SkPaint paint;
-    SkRect r = path.getBounds();
-
-    paint.setColor(SK_ColorRED);
-    canvas->drawPath(path, paint);
-
-    const SkScalar MARGIN = SkIntToScalar(4);
-
-    paint.setColor(0x800000FF);
-    for (SkScalar y = r.fTop + SK_ScalarHalf - MARGIN; y < r.fBottom + MARGIN; y += SK_Scalar1) {
-        for (SkScalar x = r.fLeft + SK_ScalarHalf - MARGIN; x < r.fRight + MARGIN; x += SK_Scalar1) {
-            if (path.contains(x, y)) {
-                canvas->drawPoint(x, y, paint);
-            }
-        }
-    }
-}
-
-class HitTestPathGM : public skiagm::GM {
-public:
-    HitTestPathGM () {}
-
-protected:
-    virtual SkString onShortName() {
-        return SkString("hittestpath");
-    }
-
-    virtual SkISize onISize() { return SkISize::Make(700, 460); }
-
-    virtual void onDraw(SkCanvas* canvas) {
-        SkPath path;
-        SkLCGRandom rand;
-
-        int scale = 300;
-        for (int i = 0; i < 4; ++i) {
-            path.lineTo(rand.nextUScalar1() * scale, rand.nextUScalar1() * scale);
-            path.quadTo(rand.nextUScalar1() * scale, rand.nextUScalar1() * scale,
-                        rand.nextUScalar1() * scale, rand.nextUScalar1() * scale);
-            path.cubicTo(rand.nextUScalar1() * scale, rand.nextUScalar1() * scale,
-                         rand.nextUScalar1() * scale, rand.nextUScalar1() * scale,
-                         rand.nextUScalar1() * scale, rand.nextUScalar1() * scale);
-        }
-
-        path.setFillType(SkPath::kEvenOdd_FillType);
-        path.offset(SkIntToScalar(20), SkIntToScalar(20));
-
-        test_hittest(canvas, path);
-
-        canvas->translate(SkIntToScalar(scale), 0);
-        path.setFillType(SkPath::kWinding_FillType);
-
-        test_hittest(canvas, path);
-    }
-
-private:
-    typedef GM INHERITED;
-};
-
-//////////////////////////////////////////////////////////////////////////////
-
-static skiagm::GM* MyFactory(void*) { return new HitTestPathGM; }
-static skiagm::GMRegistry reg(MyFactory);