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

gm/texteffects.cpp

 /*
  * Copyright 2011 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 "SkBlurMask.h"
 #include "SkBlurMaskFilter.h"
@@ skipping 128 matching lines @@
 
     p.setPathEffect(nullptr);
     p.setXfermode(nullptr);
     p.setStyle(SkPaint::kStroke_Style);
     p.setStrokeWidth(SK_Scalar1);
     rastBuilder->addLayer(p);
 }
 
 typedef void (*raster_proc)(SkLayerRasterizer::Builder*, SkPaint&);
 
-static const raster_proc gRastProcs[] = {
+constexpr raster_proc gRastProcs[] = {
     r0, r1, r2, r3, r4, r5, r6, r7, r8, r9
 };
 
 #include "SkXfermode.h"
 
 static void apply_shader(SkPaint* paint, int index) {
     raster_proc proc = gRastProcs[index];
     if (proc) {
         SkPaint p;
         SkLayerRasterizer::Builder rastBuilder;
@@ skipping 329 matching lines @@
 
         SkScalar start = textPt.fX;
         SkScalar end = posX;
         SkScalar uPos = pos[0].fY + uWidth;
         SkPath underline = create_underline(intersections, start, end, uPos, uWidth, textSize);
         paint.setStyle(SkPaint::kStroke_Style);
         canvas->drawPath(underline, paint);
         canvas->translate(0, textSize * 1.3f);
     }
 }