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/SampleAll.cpp b/samplecode/SampleAll.cpp
index 8907a34..647a199 100644
--- a/samplecode/SampleAll.cpp
+++ b/samplecode/SampleAll.cpp
@@ -451,7 +451,7 @@
         canvas->drawBitmap(fBug, left, top, &paint);
         canvas->translate(SkIntToScalar(30), 0);
         canvas->drawSprite(fTb,
-            SkScalarRound(canvas->getTotalMatrix().getTranslateX()),
+            SkScalarRoundToInt(canvas->getTotalMatrix().getTranslateX()),
             spriteOffset + 10, &paint);
 
         canvas->translate(-SkIntToScalar(30), SkIntToScalar(30));