Remove const from `const int loops`.

bench/CoverageBench.cpp

Index: bench/CoverageBench.cpp
diff --git a/bench/CoverageBench.cpp b/bench/CoverageBench.cpp
index 135ef392333a0bf7b595fca81e197aef720a37bb..3dee66836f190863be4192b2eb9e72b7e3dfd520 100644
--- a/bench/CoverageBench.cpp
+++ b/bench/CoverageBench.cpp
@@ -48,7 +48,7 @@ protected:
         return fName.c_str();
     }
 
-    void onDraw(const int loops, SkCanvas* canvas) override {
+    void onDraw(int loops, SkCanvas* canvas) override {
         if (fDrawCoverage) {
             for (int i = 0; i < loops; ++i) {
                 fDraw.drawPathCoverage(fPath, fPaint);