deprecate SkScalarRound (and its ilk), use SkScalarRound[ToInt,ToScalar]. #define SK_SUPPORT_DEPRECATED_SCALARROUND for legacy clients

BUG=
R=robertphillips@google.com

Review URL: https://codereview.chromium.org/111353003

git-svn-id: http://skia.googlecode.com/svn/trunk@12719 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/samplecode/SampleCull.cpp b/samplecode/SampleCull.cpp
index 18f2d0c..afc4184 100644
--- a/samplecode/SampleCull.cpp
+++ b/samplecode/SampleCull.cpp
@@ -79,10 +79,12 @@
         for (;;)
             switch (iter.next(pts)) {
             case SkPath::kMove_Verb:
-                array[n++].set(SkScalarRound(pts[0].fX), SkScalarRound(pts[0].fY));
+                array[n++].set(SkScalarRoundToInt(pts[0].fX),
+                               SkScalarRoundToInt(pts[0].fY));
                 break;
             case SkPath::kLine_Verb:
-                array[n++].set(SkScalarRound(pts[1].fX), SkScalarRound(pts[1].fY));
+                array[n++].set(SkScalarRoundToInt(pts[1].fX),
+                               SkScalarRoundToInt(pts[1].fY));
                 break;
             case SkPath::kDone_Verb:
                 goto FINISHED2;