Make SkFixedRound/Ceil/FloorToFixed as inline func

include/private/SkFixed.h

Index: include/private/SkFixed.h
diff --git a/include/private/SkFixed.h b/include/private/SkFixed.h
index be3bb5d6045d9b24fd98096295b3385be409d5d3..cdde0930073d3136eeb7be1be55186494432e0f0 100644
--- a/include/private/SkFixed.h
+++ b/include/private/SkFixed.h
@@ -69,9 +69,15 @@ typedef int32_t             SkFixed;
 #define SkFixedCeilToInt(x)     (((x) + SK_Fixed1 - 1) >> 16)
 #define SkFixedFloorToInt(x)    ((x) >> 16)
 
-#define SkFixedRoundToFixed(x)  (((x) + SK_FixedHalf) & 0xFFFF0000)
-#define SkFixedCeilToFixed(x)   (((x) + SK_Fixed1 - 1) & 0xFFFF0000)
-#define SkFixedFloorToFixed(x)  ((x) & 0xFFFF0000)
+static inline SkFixed SkFixedRoundToFixed(SkFixed x) {
+    return (x + SK_FixedHalf) & 0xFFFF0000;
+}
+static inline SkFixed SkFixedCeilToFixed(SkFixed x) {
+    return (x + SK_Fixed1 - 1) & 0xFFFF0000;
+}
+static inline SkFixed SkFixedFloorToFixed(SkFixed x) {
+    return x & 0xFFFF0000;
+}
 
 #define SkFixedAbs(x)       SkAbs32(x)
 #define SkFixedAve(a, b)    (((a) + (b)) >> 1)