Replace a lot of 'static const' with 'constexpr' or 'const'.

gm/pictureshadertile.cpp

 /*
  * Copyright 2014 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "gm.h"
 
 #include "SkPaint.h"
 #include "SkPicture.h"
 #include "SkPictureRecorder.h"
 #include "SkShader.h"
 
-static const SkScalar kPictureSize = SK_Scalar1;
-static const SkScalar kFillSize = 100;
-static const unsigned kRowSize = 6;
+constexpr SkScalar kPictureSize = SK_Scalar1;
+constexpr SkScalar kFillSize = 100;
+constexpr unsigned kRowSize = 6;
 
-static const struct {
+constexpr struct {
     SkScalar x, y, w, h;
     SkScalar offsetX, offsetY;
 } tiles[] = {
     {      0,      0,    1,    1,      0,    0 },
     {  -0.5f,  -0.5f,    1,    1,      0,    0 },
     {   0.5f,   0.5f,    1,    1,      0,    0 },
 
     {      0,      0, 1.5f, 1.5f,      0,    0 },
     {  -0.5f,  -0.5f, 1.5f, 1.5f,      0,    0 },
     {   0.5f,   0.5f, 1.5f, 1.5f,      0,    0 },
@@ skipping 117 matching lines @@
         }
     }
 
 private:
     sk_sp<SkShader> fShaders[SK_ARRAY_COUNT(tiles)];
 
     typedef GM INHERITED;
 };
 
 DEF_GM(return new PictureShaderTileGM;)