Implement SkPathBuilder(SkPathFillType)

Bug: skia:9000

This constructor is already declared; provide a definition.
Add a test.

Change-Id: Ic54ccffe0b1adf7c8c411e19a3fc9d825a5c9619
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/331799
Commit-Queue: Leon Scroggins <scroggo@google.com>
Reviewed-by: Mike Reed <reed@google.com>

src/core/SkPathBuilder.cpp

@@ -18,6 +18,11 @@ SkPathBuilder::SkPathBuilder() {
     this->reset();
 }
 
+SkPathBuilder::SkPathBuilder(SkPathFillType ft) {
+    this->reset();
+    fFillType = ft;
+}
+
 SkPathBuilder::SkPathBuilder(const SkPath& src) {
     *this = src;
 }

tests/PathBuilderTest.cpp

@@ -6,6 +6,7 @@
  */
 
 #include "include/core/SkPathBuilder.h"
+#include "include/core/SkPathTypes.h"
 #include "src/core/SkPathPriv.h"
 #include "tests/Test.h"
 
@@ -41,6 +42,22 @@ DEF_TEST(pathbuilder, reporter) {
     is_empty(reporter, b.detach());
 }
 
+DEF_TEST(pathbuilder_filltype, reporter) {
+    for (auto fillType : { SkPathFillType::kWinding,
+                           SkPathFillType::kEvenOdd,
+                           SkPathFillType::kInverseWinding,
+                           SkPathFillType::kInverseEvenOdd }) {
+        SkPathBuilder b(fillType);
+
+        REPORTER_ASSERT(reporter, b.fillType() == fillType);
+
+        for (const SkPath& path : { b.snapshot(), b.detach() }) {
+            REPORTER_ASSERT(reporter, path.getFillType() == fillType);
+            is_empty(reporter, path);
+        }
+    }
+}
+
 static bool check_points(const SkPath& path, const SkPoint expected[], size_t count) {
     std::vector<SkPoint> iter_pts;