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/SampleDegenerateTwoPtRadials.cpp b/samplecode/SampleDegenerateTwoPtRadials.cpp
index 07adae8..92e49a7 100644
--- a/samplecode/SampleDegenerateTwoPtRadials.cpp
+++ b/samplecode/SampleDegenerateTwoPtRadials.cpp
@@ -58,7 +58,7 @@
     virtual void onDrawContent(SkCanvas* canvas) {
         fTime += SampleCode::GetAnimSecondsDelta();
         SkScalar delta = fTime / 15.f;
-        int intPart = SkScalarFloor(delta);
+        int intPart = SkScalarFloorToInt(delta);
         delta = delta - SK_Scalar1 * intPart;
         if (intPart % 2) {
             delta = SK_Scalar1 - delta;