Refactor SkRecord opts, converting playback optimizations where possible.

src/record/SkRecordOpts.h

Index: src/record/SkRecordOpts.h
diff --git a/src/record/SkRecordOpts.h b/src/record/SkRecordOpts.h
index bc19a1fcc439e81155c0872966391b655b567a45..c9cbccf9de69f05c41ce9e1d1562ca7d578f1532 100644
--- a/src/record/SkRecordOpts.h
+++ b/src/record/SkRecordOpts.h
@@ -14,7 +14,16 @@
 void SkRecordOptimize(SkRecord*);
 
 
-// Annotates PushCull records in record with the relative offset of their paired PopCull.
+// Turns logical no-op Save-[non-drawing command]*-Restore patterns into actual no-ops.
+void SkRecordNoopSaveRestores(SkRecord*);  // TODO(mtklein): add unit tests
+
+// Annotates PushCull commands with the relative offset of their paired PopCull.
 void SkRecordAnnotateCullingPairs(SkRecord*);
 
+// Convert DrawPosText to DrawPosTextH when all the Y coordinates are equal.
+void SkRecordReduceDrawPosTextStrength(SkRecord*);  // TODO(mtklein): add unit tests
+
+// Calculate min and max Y bounds for DrawPosTextH commands, for use with SkCanvas::quickRejectY.
+void SkRecordBoundDrawPosTextH(SkRecord*);  // TODO(mtklein): add unit tests
+
 #endif//SkRecordOpts_DEFINED