Remove const from `const int loops`.

bench/RegionBench.cpp

Index: bench/RegionBench.cpp
diff --git a/bench/RegionBench.cpp b/bench/RegionBench.cpp
index b6f763cdafc2e35e07107625a47fbeb53fafb7e3..8554569e3d63b12518d7fb46060b81b008cbee45 100644
--- a/bench/RegionBench.cpp
+++ b/bench/RegionBench.cpp
@@ -106,7 +106,7 @@ public:
 protected:
     const char* onGetName() override { return fName.c_str(); }
 
-    void onDraw(const int loops, SkCanvas* canvas) override {
+    void onDraw(int loops, SkCanvas* canvas) override {
         Proc proc = fProc;
         for (int i = 0; i < loops; ++i) {
             proc(fA, fB);