Remove const from `const int loops`.

bench/FSRectBench.cpp

Index: bench/FSRectBench.cpp
diff --git a/bench/FSRectBench.cpp b/bench/FSRectBench.cpp
index 4c7173bc29f4c57e3e5545d909b95fca2c5cd6cc..cd9a36bab987a1357a505cfe814899d21303b082 100644
--- a/bench/FSRectBench.cpp
+++ b/bench/FSRectBench.cpp
@@ -39,7 +39,7 @@ protected:
         }
     }
 
-    void onDraw(const int loops, SkCanvas* canvas) override {
+    void onDraw(int loops, SkCanvas* canvas) override {
         SkPaint paint;
         for (int i = 0; i < loops; ++i) {
             paint.setColor(fColors[i % N]);