cc: Use gfx:: Geometry types for positions, bounds, and related things.

cc/stubs/skia_utils.h

Index: cc/stubs/skia_utils.h
diff --git a/cc/stubs/skia_utils.h b/cc/stubs/skia_utils.h
index d7b1fbfb03e533f82bed9d1739540164573c79e7..0110ece9ec5436abfd78628fab76874a69685c64 100644
--- a/cc/stubs/skia_utils.h
+++ b/cc/stubs/skia_utils.h
@@ -5,11 +5,13 @@
 #ifndef CC_STUBS_SKIAUTILS_H_
 #define CC_STUBS_SKIAUTILS_H_
 
+#include <cmath>
+
 namespace cc {
 
 inline SkScalar FloatToSkScalar(float f)
 {
-    return SkFloatToScalar(isfinite(f) ? f : 0);
+    return SkFloatToScalar(std::isfinite(f) ? f : 0);
 }
 
 }