convert float to SkScalar changes

http://codereview.appspot.com/6071043/

Submitted on behalf of Guanqun.Lu@gmail.com



git-svn-id: http://skia.googlecode.com/svn/trunk@3779 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/src/gpu/SkGpuDevice.cpp b/src/gpu/SkGpuDevice.cpp
index a7ba61f..411b2c5 100644
--- a/src/gpu/SkGpuDevice.cpp
+++ b/src/gpu/SkGpuDevice.cpp
@@ -774,8 +774,8 @@
     clipRect.set(clip.getBounds());
 
     // Outset srcRect and clipRect by 3 * sigma, to compute affected blur area.
-    srcRect.inset(-sigma3, -sigma3);
-    clipRect.inset(-sigma3, -sigma3);
+    srcRect.inset(SkFloatToScalar(-sigma3), SkFloatToScalar(-sigma3));
+    clipRect.inset(SkFloatToScalar(-sigma3), SkFloatToScalar(-sigma3));
     srcRect.intersect(clipRect);
     SkRect finalRect = srcRect;
     SkIRect finalIRect;