Move fIsOval from SkPath to SkPathRef

include/core/SkPicture.h

Index: include/core/SkPicture.h
===================================================================
--- include/core/SkPicture.h	(revision 12456)
+++ include/core/SkPicture.h	(working copy)
@@ -219,13 +219,17 @@
     //      parameterize blurs by sigma rather than radius
     // V14: Add flags word to PathRef serialization
     // V15: Remove A1 bitmpa config (and renumber remaining configs)
+    // V16: Move SkPath's isOval flag to SkPathRef
 #ifndef DELETE_THIS_CODE_WHEN_SKPS_ARE_REBUILT_AT_V13_AND_ALL_OTHER_INSTANCES_TOO
     static const uint32_t PRIOR_PRIOR_PICTURE_VERSION = 12;  // TODO: remove when .skps regenerated
 #endif
 #ifndef DELETE_THIS_CODE_WHEN_SKPS_ARE_REBUILT_AT_V14_AND_ALL_OTHER_INSTANCES_TOO
     static const uint32_t PRIOR_PICTURE_VERSION2 = 13;  // TODO: remove when .skps regenerated
 #endif
-    static const uint32_t PICTURE_VERSION = 15;
+#ifndef DELETE_THIS_CODE_WHEN_SKPS_ARE_REBUILT_AT_V16_AND_ALL_OTHER_INSTANCES_TOO
+    static const uint32_t PRIOR_PICTURE_VERSION3 = 15;  // TODO: remove when .skps regenerated
+#endif
+    static const uint32_t PICTURE_VERSION = 16;
 
     // fPlayback, fRecord, fWidth & fHeight are protected to allow derived classes to
     // install their own SkPicturePlayback-derived players,SkPictureRecord-derived