Move fIsOval from SkPath to SkPathRef

tests/PathTest.cpp

 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "Test.h"
 #include "SkCanvas.h"
 #include "SkPaint.h"
@@ skipping 2459 matching lines @@
         }
         REPORTER_ASSERT(reporter, numIterPts == numPoints);
         REPORTER_ASSERT(reporter, numIterVerbs == numVerbs);
     }
 }
 
 static void check_for_circle(skiatest::Reporter* reporter,
                              const SkPath& path,
                              bool expectedCircle,
                              SkPath::Direction expectedDir) {
-    SkRect rect;
+    SkRect rect = SkRect::MakeEmpty();
     REPORTER_ASSERT(reporter, path.isOval(&rect) == expectedCircle);
     REPORTER_ASSERT(reporter, path.cheapIsDirection(expectedDir));
 
     if (expectedCircle) {
         REPORTER_ASSERT(reporter, rect.height() == rect.width());
     }
 }
 
 static void test_circle_skew(skiatest::Reporter* reporter,
                              const SkPath& path,
@@ skipping 760 matching lines @@
     test_arcTo(reporter);
     test_addPath(reporter);
     test_conicTo_special_case(reporter);
     test_get_point(reporter);
     test_contains(reporter);
     PathTest_Private::TestPathTo(reporter);
 }
 
 #include "TestClassDef.h"
 DEFINE_TESTCLASS("Path", PathTestClass, TestPath)