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

gm/gradients_2pt_conical.cpp

Index: gm/gradients_2pt_conical.cpp
diff --git a/gm/gradients_2pt_conical.cpp b/gm/gradients_2pt_conical.cpp
index 28ed8bb965ea6ad4f53a29f9ffb1ef19c035bed2..ee1aee9e2d40c319ed23f5d29f33c287e9e7cca0 100644
--- a/gm/gradients_2pt_conical.cpp
+++ b/gm/gradients_2pt_conical.cpp
@@ -16,21 +16,21 @@ struct GradData {
     const SkScalar* fPos;
 };
 
-static const SkColor gColors[] = {
+constexpr SkColor gColors[] = {
     SK_ColorRED, SK_ColorGREEN, SK_ColorBLUE, SK_ColorWHITE, SK_ColorBLACK
 };
-static const SkScalar gPos0[] = { 0, SK_Scalar1 };
-static const SkScalar gPos1[] = { SK_Scalar1/4, SK_Scalar1*3/4 };
-static const SkScalar gPos2[] = {
+constexpr SkScalar gPos0[] = { 0, SK_Scalar1 };
+constexpr SkScalar gPos1[] = { SK_Scalar1/4, SK_Scalar1*3/4 };
+constexpr SkScalar gPos2[] = {
     0, SK_Scalar1/8, SK_Scalar1/2, SK_Scalar1*7/8, SK_Scalar1
 };
 
-static const SkScalar gPosClamp[]   = {0.0f, 0.0f, 1.0f, 1.0f};
-static const SkColor  gColorClamp[] = {
+constexpr SkScalar gPosClamp[]   = {0.0f, 0.0f, 1.0f, 1.0f};
+constexpr SkColor  gColorClamp[] = {
     SK_ColorRED, SK_ColorGREEN, SK_ColorGREEN, SK_ColorBLUE
 };
 
-static const GradData gGradData[] = {
+constexpr GradData gGradData[] = {
     { 2, gColors, gPos0 },
     { 2, gColors, gPos1 },
     { 5, gColors, gPos2 },
@@ -250,17 +250,17 @@ static sk_sp<SkShader> Make2ConicalInsideSmallRad(const SkPoint pts[2], const Gr
 typedef sk_sp<SkShader> (*GradMaker)(const SkPoint pts[2], const GradData& data,
                                      SkShader::TileMode tm, const SkMatrix& localMatrix);
 
-static const GradMaker gGradMakersOutside[] = {
+constexpr GradMaker gGradMakersOutside[] = {
     Make2ConicalOutside, Make2ConicalOutsideFlip,
     Make2ConicalZeroRadOutside, Make2ConicalZeroRadFlipOutside
 };
 
-static const GradMaker gGradMakersInside[] = {
+constexpr GradMaker gGradMakersInside[] = {
     Make2ConicalInside, Make2ConicalInsideFlip, Make2ConicalInsideCenter,
     Make2ConicalZeroRad, Make2ConicalZeroRadFlip, Make2ConicalZeroRadCenter,
 };
 
-static const GradMaker gGradMakersEdgeCases[] = {
+constexpr GradMaker gGradMakersEdgeCases[] = {
     Make2ConicalEdgeX, Make2ConicalEdgeY,
     Make2ConicalZeroRadEdgeX, Make2ConicalZeroRadEdgeY,
     Make2ConicalTouchX, Make2ConicalTouchY,
@@ -268,7 +268,7 @@ static const GradMaker gGradMakersEdgeCases[] = {
 };
 
 
-static const struct {
+constexpr struct {
     const GradMaker*   fMaker;
     const int fCount;
     const char* fName;