Fix race condition where chrome.tabs.executeScript sometimes wouldn't

chrome/renderer/user_script_idle_scheduler.h

Index: chrome/renderer/user_script_idle_scheduler.h
diff --git a/chrome/renderer/user_script_idle_scheduler.h b/chrome/renderer/user_script_idle_scheduler.h
index d287d758ad1e011aef575cbbc5e347eeea57c3fb..165db5a4c8280ca8b5d055019886541bc1fe4025 100644
--- a/chrome/renderer/user_script_idle_scheduler.h
+++ b/chrome/renderer/user_script_idle_scheduler.h
@@ -31,8 +31,6 @@ class UserScriptIdleScheduler {
 
   bool has_run() { return has_run_; }
 
-  void set_has_run(bool has_run) { has_run_ = has_run; }
-
   // Called when the DOM has been completely constructed.
   void DidFinishDocumentLoad();