Clean up Ganesh path render a little bit

src/gpu/GrDrawContext.cpp

Index: src/gpu/GrDrawContext.cpp
diff --git a/src/gpu/GrDrawContext.cpp b/src/gpu/GrDrawContext.cpp
index b017b50fea4fa6a8019ba0dee347337d4666d9c5..17cdbf3b6be825264ee2e523c0b58aa0c435f5dd 100644
--- a/src/gpu/GrDrawContext.cpp
+++ b/src/gpu/GrDrawContext.cpp
@@ -590,7 +590,7 @@ static bool is_nested_rects(const SkMatrix& viewMatrix,
 
     // TODO: this restriction could be lifted if we were willing to apply
     // the matrix to all the points individually rather than just to the rect
-    if (!viewMatrix.preservesAxisAlignment()) {
+    if (!viewMatrix.rectStaysRect()) {
         return false;
     }