Remove const from `const int loops`.

bench/Benchmark.cpp

Index: bench/Benchmark.cpp
diff --git a/bench/Benchmark.cpp b/bench/Benchmark.cpp
index 98fec2e7aa7da60e91d1b2e8f551b63fef3911a8..df1e34746b36633fe238222740e1cacaf25d2e4e 100644
--- a/bench/Benchmark.cpp
+++ b/bench/Benchmark.cpp
@@ -53,7 +53,7 @@ void Benchmark::perCanvasPostDraw(SkCanvas* canvas) {
     this->onPerCanvasPostDraw(canvas);
 }
 
-void Benchmark::draw(const int loops, SkCanvas* canvas) {
+void Benchmark::draw(int loops, SkCanvas* canvas) {
     SkAutoCanvasRestore ar(canvas, true/*save now*/);
     this->onDraw(loops, canvas);
 }