Remove const from `const int loops`.

bench/TextBlobBench.cpp

Index: bench/TextBlobBench.cpp
diff --git a/bench/TextBlobBench.cpp b/bench/TextBlobBench.cpp
index 5f4dbba63da5ac999df69dd3a11dcb9beca59cf3..6d5a88f3183d616a7ab92f75958c959f1baffc16 100644
--- a/bench/TextBlobBench.cpp
+++ b/bench/TextBlobBench.cpp
@@ -54,7 +54,7 @@ protected:
         return "TextBlobBench";
     }
 
-    void onDraw(const int loops, SkCanvas* canvas) override {
+    void onDraw(int loops, SkCanvas* canvas) override {
         SkPaint paint;
 
         // To ensure maximum caching, we just redraw the blob at the same place everytime