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/bench/BlurBench.cpp b/bench/BlurBench.cpp
index 5f735dd..e7811d6 100644
--- a/bench/BlurBench.cpp
+++ b/bench/BlurBench.cpp
@@ -43,7 +43,7 @@
         if (SkScalarFraction(rad) != 0) {
             fName.printf("blur_%.2f_%s_%s", SkScalarToFloat(rad), name, quality);
         } else {
-            fName.printf("blur_%d_%s_%s", SkScalarRound(rad), name, quality);
+            fName.printf("blur_%d_%s_%s", SkScalarRoundToInt(rad), name, quality);
         }
     }