Simple cleanups related to SkFixed.

src/effects/gradients/SkTwoPointConicalGradient.h

 
 /*
  * Copyright 2012 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef SkTwoPointConicalGradient_DEFINED
 #define SkTwoPointConicalGradient_DEFINED
 
 #include "SkGradientShaderPriv.h"
 
 // TODO(dominikg): Worth making it truly immutable (i.e. set values in constructor)?
 // Should only be initialized once via init(). Immutable afterwards.
 struct TwoPtRadial {
     enum {
-        kDontDrawT  = 0x80000000
+        kDontDrawT  = SK_FixedMin
     };
 
     float   fCenterX, fCenterY;
     float   fDCenterX, fDCenterY;
     float   fRadius;
     float   fDRadius;
     float   fA;
     float   fRadius2;
     float   fRDR;
     bool    fFlipped;
@@ skipping 59 matching lines @@
     SkPoint fCenter2;
     SkScalar fRadius1;
     SkScalar fRadius2;
     bool fFlippedGrad;
 
     friend class SkGradientShader;
     typedef SkGradientShaderBase INHERITED;
 };
 
 #endif