Remove const from `const int loops`.

bench/MagnifierBench.cpp

Index: bench/MagnifierBench.cpp
diff --git a/bench/MagnifierBench.cpp b/bench/MagnifierBench.cpp
index c79c66893bad4591f1f18e6653d0d61fd1eb6ccf..61850597fa03ae609c015c1e45a7bc22994eede9 100644
--- a/bench/MagnifierBench.cpp
+++ b/bench/MagnifierBench.cpp
@@ -33,7 +33,7 @@ protected:
         }
     }
 
-    void onDraw(const int loops, SkCanvas* canvas) override {
+    void onDraw(int loops, SkCanvas* canvas) override {
         const int w = fIsSmall ? FILTER_WIDTH_SMALL : FILTER_WIDTH_LARGE;
         const int h = fIsSmall ? FILTER_HEIGHT_SMALL : FILTER_HEIGHT_LARGE;
         SkPaint paint;