Make UserScript non-copyable.

chrome/browser/extensions/api/declarative_content/content_action.h

 // Copyright (c) 2012 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 CHROME_BROWSER_EXTENSIONS_API_DECLARATIVE_CONTENT_CONTENT_ACTION_H_
 #define CHROME_BROWSER_EXTENSIONS_API_DECLARATIVE_CONTENT_CONTENT_ACTION_H_
 
 #include <memory>
 #include <string>
 
@@ skipping 86 matching lines @@
   // Implementation of ContentAction:
   void Apply(const ApplyInfo& apply_info) const override;
   void Reapply(const ApplyInfo& apply_info) const override;
   void Revert(const ApplyInfo& apply_info) const override;
 
  private:
   void InitScript(const HostID& host_id,
                   const Extension* extension,
                   const ScriptData& script_data);
 
-  void AddScript() {
-    DCHECK(master_);
-    master_->AddScript(script_);
-  }
+  void AddScript();
 
   void InstructRenderProcessToInject(content::WebContents* contents,
                                      const Extension* extension) const;
 
   UserScript script_;
   DeclarativeUserScriptMaster* master_;
 
   DISALLOW_COPY_AND_ASSIGN(RequestContentScript);
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_API_DECLARATIVE_CONTENT_CONTENT_ACTION_H_