Remove const from `const int loops`.

bench/GLInstancedArraysBench.cpp

Index: bench/GLInstancedArraysBench.cpp
diff --git a/bench/GLInstancedArraysBench.cpp b/bench/GLInstancedArraysBench.cpp
index 5cb4c069ab4795edef759b24b1129473ebbd0f45..128f5392944980d88cdc0300701fe8dc902be944 100644
--- a/bench/GLInstancedArraysBench.cpp
+++ b/bench/GLInstancedArraysBench.cpp
@@ -62,7 +62,7 @@ protected:
 
     const GrGLContext* onGetGLContext(const GrGLContext*) override;
     void setup(const GrGLContext*) override;
-    void glDraw(const int loops, const GrGLContext*) override;
+    void glDraw(int loops, const GrGLContext*) override;
     void teardown(const GrGLInterface*) override;
 
 private:
@@ -339,7 +339,7 @@ void GLCpuPosInstancedArraysBench::setup(const GrGLContext* ctx) {
     GR_GL_CALL(gl, BindVertexArray(fVAO));
 }
 
-void GLCpuPosInstancedArraysBench::glDraw(const int loops, const GrGLContext* ctx) {
+void GLCpuPosInstancedArraysBench::glDraw(int loops, const GrGLContext* ctx) {
     const GrGLInterface* gl = ctx->interface();
 
     uint32_t maxTrianglesPerFlush = fDrawDiv == 0 ?  kNumTri :