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

gm/pathfill.cpp

Index: gm/pathfill.cpp
diff --git a/gm/pathfill.cpp b/gm/pathfill.cpp
index b4010ce6061df9b916f943d25ce176ff746eca26..3496cfd04dccf7ea589d245c08b4ea22d56cb179 100644
--- a/gm/pathfill.cpp
+++ b/gm/pathfill.cpp
@@ -23,7 +23,7 @@ static SkScalar make_frame(SkPath* path) {
 }
 
 static SkScalar make_triangle(SkPath* path) {
-    static const int gCoord[] = {
+    constexpr int gCoord[] = {
         10, 20, 15, 5, 30, 30
     };
     path->moveTo(SkIntToScalar(gCoord[0]), SkIntToScalar(gCoord[1]));
@@ -102,7 +102,7 @@ static SkScalar make_line(SkPath* path) {
     return SkIntToScalar(40);
 }
 
-static const MakePathProc gProcs[] = {
+constexpr MakePathProc gProcs[] = {
     make_frame,
     make_triangle,
     make_rect,