Refactor: clean up some unused or mostly-unused API I saw here.

tests/EmptyPathTest.cpp

Index: tests/EmptyPathTest.cpp
diff --git a/tests/EmptyPathTest.cpp b/tests/EmptyPathTest.cpp
index 5c054ec16b36e69ccea0c0a2e053ebd9cd8e830e..153af1f50abf56794cc84576d47c3bb30867fc5a 100644
--- a/tests/EmptyPathTest.cpp
+++ b/tests/EmptyPathTest.cpp
@@ -59,7 +59,7 @@ static void drawAndTest(skiatest::Reporter* reporter, const SkPath& path,
         }
         appendStr(&str, paint);
         appendStr(&str, path);
-        reporter->report(str.c_str(), skiatest::Reporter::kFailed);
+        reporter->reportFailed(str);
 
 // uncomment this if you want to step in to see the failure
 //        canvas.drawPath(path, p);