Refactor SkRecord opts, converting playback optimizations where possible.

tests/RecorderTest.cpp

Index: tests/RecorderTest.cpp
diff --git a/tests/RecorderTest.cpp b/tests/RecorderTest.cpp
index 384425ddc241f2890a505bc809f76057c18e30b9..d5b57d1132792ed9cdba95a598db3f9a39ab3b2b 100644
--- a/tests/RecorderTest.cpp
+++ b/tests/RecorderTest.cpp
@@ -39,7 +39,9 @@ DEF_TEST(Recorder, r) {
     recorder.drawRect(SkRect::MakeWH(10, 10), SkPaint());
 
     Tally tally;
-    record.visit(tally);
+    for (unsigned i = 0; i < record.count(); i++) {
+        record.visit(i, tally);
+    }
 
     REPORTER_ASSERT(r, 1 == tally.count<SkRecords::DrawRect>());
 }