Reverse dependency between SkScalar.h and SkFixed.h

src/core/SkPerspIter.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 SkPerspIter_DEFINED
 #define SkPerspIter_DEFINED
 
+#include "SkFixed.h"
 #include "SkMatrix.h"
 
 class SkPerspIter {
 public:
     /** Iterate a line through the matrix [x,y] ... [x+count-1, y].
         @param m    The matrix we will be iterating a line through
         @param x    The initial X coordinate to be mapped through the matrix
         @param y    The initial Y coordinate to be mapped through the matrix
         @param count The number of points (x,y) (x+1,y) (x+2,y) ... we will eventually map
     */
@@ skipping 16 matching lines @@
         kCount  = (1 << kShift)
     };
     const SkMatrix& fMatrix;
     SkFixed         fStorage[kCount * 2];
     SkFixed         fX, fY;
     SkScalar        fSX, fSY;
     int             fCount;
 };
 
 #endif