Remove const from `const int loops`.

bench/subset/SubsetSingleBench.cpp

Index: bench/subset/SubsetSingleBench.cpp
diff --git a/bench/subset/SubsetSingleBench.cpp b/bench/subset/SubsetSingleBench.cpp
index e409cf7ed88dd8e5116357713e24694f6b5e094a..232c159a0baea1030e442bc2365b6702991126f4 100644
--- a/bench/subset/SubsetSingleBench.cpp
+++ b/bench/subset/SubsetSingleBench.cpp
@@ -57,7 +57,7 @@ bool SubsetSingleBench::isSuitableFor(Backend backend) {
     return kNonRendering_Backend == backend;
 }
 
-void SubsetSingleBench::onDraw(const int n, SkCanvas* canvas) {
+void SubsetSingleBench::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;