Revert "move onto new factories for SkMatrix"

This reverts commit 046c2b7d90ba3be4eba95d7a6d3948142e9f1ae5.

Reason for revert: need to update/guard flutter

Original change's description:
> move onto new factories for SkMatrix
> 
> Just rename, no functional changes expected.
> 
> Change-Id: Id77ab1cf6b1cab35087a7c56000750912cf47383
> Reviewed-on: https://skia-review.googlesource.com/c/skia/+/290831
> Commit-Queue: Mike Reed <reed@google.com>
> Reviewed-by: Florin Malita <fmalita@chromium.org>

TBR=fmalita@chromium.org,reed@google.com

Change-Id: Ic74f177128913374b8c60b4df88f04cf72fbacb3
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/291359
Reviewed-by: Mike Reed <reed@google.com>
Commit-Queue: Mike Reed <reed@google.com>
diff --git a/docs/examples/Paint_getFillPath.cpp b/docs/examples/Paint_getFillPath.cpp
index 64b630e..a52e3f2 100644
--- a/docs/examples/Paint_getFillPath.cpp
+++ b/docs/examples/Paint_getFillPath.cpp
@@ -14,7 +14,7 @@
     SkPath fillPath;
     SkPaint outlinePaint(strokePaint);
     outlinePaint.setStrokeWidth(2);
-    SkMatrix scale = SkMatrix::Scale(300, 300);
+    SkMatrix scale = SkMatrix::MakeScale(300, 300);
     for (SkScalar precision : { 0.01f, .1f, 1.f, 10.f, 100.f } ) {
         strokePaint.getFillPath(strokePath, &fillPath, nullptr, precision);
         fillPath.transform(scale);