Revert of experiment with zero-length round capped line segments (patchset #4 id:60001 of https://codereview.chromium.org/1309753002/ )

Reason for revert:
More GMs changed than I expected. Will probably affect layout tests as well; reverting until I can verify that the changes are correct.

Original issue's description:
> experiment with zero-length round capped line segments
>
> If the endcap is not butt, draw the endcaps even when the line
> has zero length.
>
> If the dash length is zero, generate a zero length line segment.
>
> Treat a move followed by a close as a move followed by a zero-length
> line.
>
> R=reed@google.com,schenney@google.com
> BUG=422974
>
> Committed: https://skia.googlesource.com/skia/+/dd3c165828fffb369d0f4b13b48381169a0249a9

TBR=reed@google.com,schenney@google.com,schenney@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=422974

Review URL: https://codereview.chromium.org/1304163008

1 files changed, 0 insertions, 74 deletions

diff --git a/gm/strokes.cpp b/gm/strokes.cpp
index e914d0a0b7..73823907a3 100644
--- a/gm/strokes.cpp
+++ b/gm/strokes.cpp
@@ -8,8 +8,6 @@
 #include "gm.h"
 #include "SkPath.h"
 #include "SkRandom.h"
-#include "SkDashPathEffect.h"
-#include "SkParsePath.h"
 
 #define W   400
 #define H   400
@@ -78,76 +76,6 @@ private:
     typedef skiagm::GM INHERITED;
 };
 
-/* See
-   https://code.google.com/p/chromium/issues/detail?id=422974          and
-   http://jsfiddle.net/1xnku3sg/2/
- */
-class ZeroLenStrokesGM : public skiagm::GM {
-    SkPath fMoveHfPath, fMoveZfPath, fDashedfPath, fRefPath[4];
-protected:
-    void onOnceBeforeDraw() override {
-
-        SkAssertResult(SkParsePath::FromSVGString("M0,0h0M10,0h0M20,0h0", &fMoveHfPath));
-        SkAssertResult(SkParsePath::FromSVGString("M0,0zM10,0zM20,0z", &fMoveZfPath));
-        SkAssertResult(SkParsePath::FromSVGString("M0,0h25", &fDashedfPath));
-
-        for (int i = 0; i < 3; ++i) {
-            fRefPath[0].addCircle(i * 10.f, 0, 5);
-            fRefPath[1].addCircle(i * 10.f, 0, 10);
-            fRefPath[2].addRect(i * 10.f - 4, -2, i * 10.f + 4, 6);
-            fRefPath[3].addRect(i * 10.f - 10, -10, i * 10.f + 10, 10);
-        }
-    }
-
-    SkString onShortName() override {
-        return SkString("zeroPath");
-    }
-
-    SkISize onISize() override {
-        return SkISize::Make(W, H*2);
-    }
-
-    void onDraw(SkCanvas* canvas) override {
-        SkPaint fillPaint, strokePaint, dashPaint;
-        fillPaint.setAntiAlias(true);
-        strokePaint = fillPaint;
-        strokePaint.setStyle(SkPaint::kStroke_Style);
-        for (int i = 0; i < 2; ++i) {
-            fillPaint.setAlpha(255);
-            strokePaint.setAlpha(255);
-            strokePaint.setStrokeWidth(i ? 8.f : 10.f);
-            strokePaint.setStrokeCap(i ? SkPaint::kSquare_Cap : SkPaint::kRound_Cap);
-            canvas->save();
-            canvas->translate(10 + i * 100.f, 10);
-            canvas->drawPath(fMoveHfPath, strokePaint);
-            canvas->translate(0, 20);
-            canvas->drawPath(fMoveZfPath, strokePaint);
-            dashPaint = strokePaint;
-            const SkScalar intervals[] = { 0, 10 };
-            dashPaint.setPathEffect(SkDashPathEffect::Create(intervals, 2, 0))->unref();
-            SkPath fillPath;
-            dashPaint.getFillPath(fDashedfPath, &fillPath);
-            canvas->translate(0, 20);
-            canvas->drawPath(fDashedfPath, dashPaint);
-            canvas->translate(0, 20);
-            canvas->drawPath(fRefPath[i * 2], fillPaint);
-            strokePaint.setStrokeWidth(20);
-            strokePaint.setAlpha(127);
-            canvas->translate(0, 50);
-            canvas->drawPath(fMoveHfPath, strokePaint);
-            canvas->translate(0, 30);
-            canvas->drawPath(fMoveZfPath, strokePaint);
-            canvas->translate(0, 30);
-            fillPaint.setAlpha(127);
-            canvas->drawPath(fRefPath[1 + i * 2], fillPaint);
-            canvas->restore();
-        }
-    }
-
-private:
-    typedef skiagm::GM INHERITED;
-};
-
 class Strokes2GM : public skiagm::GM {
     SkPath fPath;
 protected:
@@ -350,5 +278,3 @@ static skiagm::GMRegistry R0(F0);
 static skiagm::GMRegistry R1(F1);
 static skiagm::GMRegistry R2(F2);
 static skiagm::GMRegistry R3(F3);
-
-DEF_GM(return SkNEW(ZeroLenStrokesGM);)