Fix content script injection not working with PlzNavigate because of different navigation timings.

extensions/renderer/user_script_injector.cc

Index: extensions/renderer/user_script_injector.cc
diff --git a/extensions/renderer/user_script_injector.cc b/extensions/renderer/user_script_injector.cc
index 6f8e42bf7de8c4b2da1ef5d1357da17bc29fdde8..73096868c94a4ff48f6e31aa2bc40e8e56b3a675 100644
--- a/extensions/renderer/user_script_injector.cc
+++ b/extensions/renderer/user_script_injector.cc
@@ -164,7 +164,7 @@ bool UserScriptInjector::ShouldInjectCss(
 PermissionsData::AccessType UserScriptInjector::CanExecuteOnFrame(
     const InjectionHost* injection_host,
     blink::WebLocalFrame* web_frame,
-    int tab_id) const {
+    int tab_id) {
   // There is no harm in allowing the injection when the script is gone,
   // because there is nothing to inject.
   if (!script_)