Introduce HostID and de-couple Extensions from "script injection System" [browser side]

extensions/browser/api/declarative_webrequest/webrequest_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 EXTENSIONS_BROWSER_API_DECLARATIVE_WEBREQUEST_WEBREQUEST_ACTION_H_
 #define EXTENSIONS_BROWSER_API_DECLARATIVE_WEBREQUEST_WEBREQUEST_ACTION_H_
 
 #include <list>
 #include <string>
 #include <vector>
@@ skipping 117 matching lines @@
                              bool crosses_incognito) const;
 
   // Factory method that instantiates a concrete WebRequestAction
   // implementation according to |json_action|, the representation of the
   // WebRequestAction as received from the extension API.
   // Sets |error| and returns NULL in case of a semantic error that cannot
   // be caught by schema validation. Sets |bad_message| and returns NULL
   // in case the input is syntactically unexpected.
   static scoped_refptr<const WebRequestAction> Create(
       content::BrowserContext* browser_context,
+      const HostID& host_id,
       const Extension* extension,
       const base::Value& json_action,
       std::string* error,
       bool* bad_message);
 
   // Returns a description of the modification to the request caused by
   // this action.
   virtual LinkedPtrEventResponseDelta CreateDelta(
       const WebRequestData& request_data,
       const std::string& extension_id,
@@ skipping 313 matching lines @@
  private:
   ~WebRequestSendMessageToExtensionAction() override;
 
   std::string message_;
   DISALLOW_COPY_AND_ASSIGN(WebRequestSendMessageToExtensionAction);
 };
 
 }  // namespace extensions
 
 #endif  // EXTENSIONS_BROWSER_API_DECLARATIVE_WEBREQUEST_WEBREQUEST_ACTION_H_