Rewriting path writer

The path writer takes constructs the output path out of
curves that satisfy the pathop operation.

Curves contain lists of t/point pairs that may not be
comparable to each other. To match up curve ends in the
output path, look for adjacent curves to have a shared
membership rather than comparing point values.

Use path utilities to connect partial curve lists into
closed contours.

Share the angle code that determines if a curve has become
a degenerate line with the path writer.

Clean up some code on the way, and delete some unused
functions.

TBR=reed@google.com
BUG=5188
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2321973005

Review-Url: https://codereview.chromium.org/2321973005

1 files changed, 1 insertions, 1 deletions

diff --git a/src/pathops/SkPathOpsTightBounds.cpp b/src/pathops/SkPathOpsTightBounds.cpp
index e3a3108bd7..60f18cfbbc 100644
--- a/src/pathops/SkPathOpsTightBounds.cpp
+++ b/src/pathops/SkPathOpsTightBounds.cpp
@@ -23,7 +23,7 @@ bool TightBounds(const SkPath& path, SkRect* result) {
     } else {
         workingPath = &path;
     }
-    SkOpEdgeBuilder builder(*workingPath, &contour, &globalState);
+    SkOpEdgeBuilder builder(*workingPath, contourList, &globalState);
     if (!builder.finish()) {
         return false;
     }