clean up tests

Confirm that no path ops tests are flaky, and clean up errors around
that. The test framework was incorrectly checking for >= MAX_ERRORS for
failure and <= MAX_ERRORS for success.

TBR=reed@google.com

Review URL: https://codereview.chromium.org/1140563003
diff --git a/tests/PathOpsOpCubicThreadedTest.cpp b/tests/PathOpsOpCubicThreadedTest.cpp
index 26617b8..12eb71b 100644
--- a/tests/PathOpsOpCubicThreadedTest.cpp
+++ b/tests/PathOpsOpCubicThreadedTest.cpp
@@ -64,7 +64,7 @@
                         SkPathOpsDebug::OpStr((SkPathOp) op));
                 str += sprintf(str, "}\n");
             }
-            if (!testThreadedPathOp(state.fReporter, pathA, pathB, (SkPathOp) op, "cubics")) {
+            if (!testPathOp(state.fReporter, pathA, pathB, (SkPathOp) op, "cubics")) {
                 if (progress) {
                     ++loopNo;
                     goto skipToNext;