Block content scripts from executing until user grants permission

extensions/common/user_script.h

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef EXTENSIONS_COMMON_USER_SCRIPT_H_
 #define EXTENSIONS_COMMON_USER_SCRIPT_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 27 matching lines @@
   enum RunLocation {
     UNDEFINED,
     DOCUMENT_START,  // After the documentElement is created, but before
                      // anything else happens.
     DOCUMENT_END,  // After the entire document is parsed. Same as
                    // DOMContentLoaded.
     DOCUMENT_IDLE,  // Sometime after DOMContentLoaded, as soon as the document
                     // is "idle". Currently this uses the simple heuristic of:
                     // min(DOM_CONTENT_LOADED + TIMEOUT, ONLOAD), but no
                     // particular injection point is guaranteed.
+    RUN_DEFERRED,  // The user script's injection was deferred for permissions
+                   // reasons, and was executed at a later time.
     RUN_LOCATION_LAST  // Leave this as the last item.
   };
 
   // Holds actual script file info.
   class File {
    public:
     File(const base::FilePath& extension_root,
          const base::FilePath& relative_path,
          const GURL& url);
     File();
@@ skipping 201 matching lines @@
 
   // True if the script should be injected into an incognito tab.
   bool incognito_enabled_;
 };
 
 typedef std::vector<UserScript> UserScriptList;
 
 }  // namespace extensions
 
 #endif  // EXTENSIONS_COMMON_USER_SCRIPT_H_