Remove const from `const int loops`.

bench/ColorPrivBench.cpp

Index: bench/ColorPrivBench.cpp
diff --git a/bench/ColorPrivBench.cpp b/bench/ColorPrivBench.cpp
index 4aa51c41dd51184dc65c9bcdff2162f7c86ac832..314f0cb28fffc8a8504def32c5e99f1d6f01cbf0 100644
--- a/bench/ColorPrivBench.cpp
+++ b/bench/ColorPrivBench.cpp
@@ -39,7 +39,7 @@ public:
         if (kScale) fScales[256] = 255;  // We'll just do 255 twice if we're limited to [0,255].
     }
 
-    void onDraw(const int loops, SkCanvas*) override {
+    void onDraw(int loops, SkCanvas*) override {
         // We xor results of FourByteInterp into junk to make sure the function runs.
         volatile SkPMColor junk = 0;