Type conversion fixes, ui/gfx/ edition.

ui/gfx/geometry/safe_integer_conversions.h

Index: ui/gfx/geometry/safe_integer_conversions.h
diff --git a/ui/gfx/geometry/safe_integer_conversions.h b/ui/gfx/geometry/safe_integer_conversions.h
index 58ed2a9336ea12a2d2e632d13b50851cdcad83b8..873378018b497f6c1b0ce5465e6931e7e0d412b8 100644
--- a/ui/gfx/geometry/safe_integer_conversions.h
+++ b/ui/gfx/geometry/safe_integer_conversions.h
@@ -47,6 +47,15 @@ inline int ToRoundedInt(float value) {
   return ClampToInt(rounded);
 }
 
+inline int ToRoundedInt(double value) {
+  double rounded;
+  if (value >= 0.0)
+    rounded = std::floor(value + 0.5);
+  else
+    rounded = std::ceil(value - 0.5);
+  return ClampToInt(rounded);
+}
+
 inline bool IsExpressibleAsInt(float value) {
   if (value != value)
     return false; // no int NaN.