cc: Fix const value pattern by replacing it by non-const or reference.

cc/trees/layer_tree_host_unittest_scroll.cc

Index: cc/trees/layer_tree_host_unittest_scroll.cc
diff --git a/cc/trees/layer_tree_host_unittest_scroll.cc b/cc/trees/layer_tree_host_unittest_scroll.cc
index 8cb13e9f237b42fafe6274633903fd1fbf426be0..9f545a5fe208f297f4241bb309b34a30ef4ab344 100644
--- a/cc/trees/layer_tree_host_unittest_scroll.cc
+++ b/cc/trees/layer_tree_host_unittest_scroll.cc
@@ -1865,7 +1865,7 @@ class LayerTreeHostScrollTestElasticOverscroll
     PostSetNeedsCommitToMainThread();
   }
 
-  void BindInputHandler(const base::WeakPtr<InputHandler> input_handler) {
+  void BindInputHandler(base::WeakPtr<InputHandler> input_handler) {
     DCHECK(task_runner_provider()->IsImplThread());
     input_handler->BindToClient(&input_handler_client_);
     scroll_elasticity_helper_ = input_handler->CreateScrollElasticityHelper();