Reverse dependency between SkScalar.h and SkFixed.h

include/utils/SkRandom.h

 /*
  * Copyright 2006 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef SkRandom_DEFINED
 #define SkRandom_DEFINED
 
+#include "../private/SkFixed.h"
 #include "SkScalar.h"
 
 /** \class SkRandom
 
  Utility class that implements pseudo random 32bit numbers using Marsaglia's
  multiply-with-carry "mother of all" algorithm. Unlike rand(), this class holds
  its own state, so that multiple instances can be used with no side-effects.
 
  Has a large period and all bits are well-randomized.
  */
@@ skipping 153 matching lines @@
     enum {
         kKMul = 30345,
         kJMul = 18000,
     };
 
     uint32_t fK;
     uint32_t fJ;
 };
 
 #endif