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

gm/perspshaders.cpp

 /*
  * Copyright 2015 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 "SkGradientShader.h"
 #include "SkImage.h"
@@ skipping 38 matching lines @@
         fBitmapShader = SkShader::MakeBitmapShader(fBitmap, SkShader::kClamp_TileMode,
                                                    SkShader::kClamp_TileMode);
         SkPoint pts1[] = {
             { 0, 0 },
             { SkIntToScalar(kCellSize), SkIntToScalar(kCellSize) }
         };
         SkPoint pts2[] = {
             { 0, 0 },
             { 0, SkIntToScalar(kCellSize) }
         };
-        static const SkColor colors[] = {
+        constexpr SkColor colors[] = {
             SK_ColorRED, SK_ColorGREEN, SK_ColorRED, SK_ColorGREEN, SK_ColorRED
         };
-        static const SkScalar pos[] = { 0, 0.25f, 0.5f, 0.75f, SK_Scalar1 };
+        constexpr SkScalar pos[] = { 0, 0.25f, 0.5f, 0.75f, SK_Scalar1 };
 
         fLinearGrad1 = SkGradientShader::MakeLinear(pts1, colors, pos, SK_ARRAY_COUNT(colors),
                                                     SkShader::kClamp_TileMode);
         fLinearGrad2 = SkGradientShader::MakeLinear(pts2, colors, pos, SK_ARRAY_COUNT(colors),
                                                     SkShader::kClamp_TileMode);
 
         fPerspMatrix.reset();
         fPerspMatrix.setPerspY(SK_Scalar1 / 50);
 
         fPath.moveTo(0, 0);
@@ skipping 71 matching lines @@
         this->drawRow(canvas, kNone_SkFilterQuality);
         canvas->translate(0, SkIntToScalar(kCellSize));
         this->drawRow(canvas, kLow_SkFilterQuality);
         canvas->translate(0, SkIntToScalar(kCellSize));
         this->drawRow(canvas, kMedium_SkFilterQuality);
         canvas->translate(0, SkIntToScalar(kCellSize));
         this->drawRow(canvas, kHigh_SkFilterQuality);
         canvas->translate(0, SkIntToScalar(kCellSize));
     }
 private:
-    static const int kCellSize = 50;
-    static const int kNumRows = 4;
-    static const int kNumCols = 6;
+    static constexpr int kCellSize = 50;
+    static constexpr int kNumRows = 4;
+    static constexpr int kNumCols = 6;
 
     bool            fDoAA;
     SkPath          fPath;
     sk_sp<SkShader> fBitmapShader;
     sk_sp<SkShader> fLinearGrad1;
     sk_sp<SkShader> fLinearGrad2;
     SkMatrix        fPerspMatrix;
     sk_sp<SkImage>  fImage;
     SkBitmap        fBitmap;
 
     typedef GM INHERITED;
 };
 
 //////////////////////////////////////////////////////////////////////////////
 
 DEF_GM(return new PerspShadersGM(true);)
 DEF_GM(return new PerspShadersGM(false);)
 }