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/Matrix_decomposeScale.cpp b/docs/examples/Matrix_decomposeScale.cpp
index 077fc25..4309850 100644
--- a/docs/examples/Matrix_decomposeScale.cpp
+++ b/docs/examples/Matrix_decomposeScale.cpp
@@ -15,7 +15,7 @@
     SkDebugf("success: %s  ", success ? "true" : "false");
     SkDebugf("scale: %g, %g\n", scale.width(), scale.height());
     remaining.dump();
-    SkMatrix scaleMatrix = SkMatrix::Scale(scale.width(), scale.height());
+    SkMatrix scaleMatrix = SkMatrix::MakeScale(scale.width(), scale.height());
     SkMatrix combined = SkMatrix::Concat(scaleMatrix, remaining);
     combined.dump();
 }