Remove const from `const int loops`.

bench/subset/SubsetZoomBench.cpp

Index: bench/subset/SubsetZoomBench.cpp
diff --git a/bench/subset/SubsetZoomBench.cpp b/bench/subset/SubsetZoomBench.cpp
index 869e93043d6c21684c3e0600992c0a6572a6b795..ffd86703ec2271e40fdc27c1679fe914f4b958ac 100644
--- a/bench/subset/SubsetZoomBench.cpp
+++ b/bench/subset/SubsetZoomBench.cpp
@@ -53,7 +53,7 @@ bool SubsetZoomBench::isSuitableFor(Backend backend) {
     return kNonRendering_Backend == backend;
 }
 
-void SubsetZoomBench::onDraw(const int n, SkCanvas* canvas) {
+void SubsetZoomBench::onDraw(int n, SkCanvas* canvas) {
     // When the color type is kIndex8, we will need to store the color table.  If it is
     // used, it will be initialized by the codec.
     int colorCount;