Revert "Revert "SkTypes: extract SkTo""

This reverts commit fdcfb8b7c23fbf18f872d2c31d27978235033876.

> Original change's description:
> > SkTypes: extract SkTo
> >
> > Change-Id: I8de790d5013db2105ad885fa2683303d7c250b09
> > Reviewed-on: https://skia-review.googlesource.com/133620
> > Reviewed-by: Mike Klein <mtklein@google.com>

Change-Id: Ida74fbc5c21248a724a5edbf9fae18a33bcb23aa
Reviewed-on: https://skia-review.googlesource.com/134506
Reviewed-by: Mike Klein <mtklein@google.com>
Commit-Queue: Hal Canary <halcanary@google.com>
diff --git a/samplecode/SampleHairline.cpp b/samplecode/SampleHairline.cpp
index 51fff8d..b90e99e 100644
--- a/samplecode/SampleHairline.cpp
+++ b/samplecode/SampleHairline.cpp
@@ -7,9 +7,10 @@
 
 #include "SampleCode.h"
 #include "SkAnimTimer.h"
-#include "SkView.h"
 #include "SkBitmap.h"
 #include "SkCanvas.h"
+#include "SkColorFilter.h"
+#include "SkColorPriv.h"
 #include "SkCornerPathEffect.h"
 #include "SkGradientShader.h"
 #include "SkGraphics.h"
@@ -17,13 +18,12 @@
 #include "SkRandom.h"
 #include "SkRegion.h"
 #include "SkShader.h"
-#include "SkUtils.h"
-#include "SkColorPriv.h"
-#include "SkColorFilter.h"
-#include "SkTime.h"
-#include "SkTypeface.h"
 #include "SkStream.h"
-#include "SkColorPriv.h"
+#include "SkTime.h"
+#include "SkTo.h"
+#include "SkTypeface.h"
+#include "SkUtils.h"
+#include "SkView.h"
 
 static SkRandom gRand;