Block tabs.executeScript() from executing until user grants permission

chrome/browser/extensions/script_executor.h

Index: chrome/browser/extensions/script_executor.h
diff --git a/chrome/browser/extensions/script_executor.h b/chrome/browser/extensions/script_executor.h
index c4d1567b21583fea40fa296c473cdca6e04c50ca..dbceb65a5748dacfd91b595058ec1f91362569e7 100644
--- a/chrome/browser/extensions/script_executor.h
+++ b/chrome/browser/extensions/script_executor.h
@@ -13,6 +13,7 @@
 #include "extensions/common/user_script.h"
 
 class GURL;
+struct ExtensionMsg_ExecuteCode_Params;
 
 namespace base {
 class ListValue;
@@ -93,6 +94,10 @@ class ScriptExecutor {
                      const ExecuteScriptCallback& callback);
 
  private:
+  // Called upon a request being given to execute the script.
+  void ExecuteScriptHelper(scoped_ptr<ExtensionMsg_ExecuteCode_Params> params,
+                           const ExecuteScriptCallback& callback);
+
   // The next value to use for request_id in ExtensionMsg_ExecuteCode_Params.
   int next_request_id_;