Implement <webview>.addContentScript/removeContentScript API [1]

extensions/browser/extension_system.h

 // Copyright 2014 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_EXTENSION_SYSTEM_H_
 #define EXTENSIONS_BROWSER_EXTENSION_SYSTEM_H_
 
 #include <string>
 
 #include "base/memory/ref_counted.h"
@@ skipping 26 matching lines @@
 class ExtensionSet;
 class InfoMap;
 class InstallVerifier;
 class LazyBackgroundTaskQueue;
 class ManagementPolicy;
 class OneShotEvent;
 class QuotaService;
 class RuntimeData;
 class SharedUserScriptMaster;
 class StateStore;
+class WebViewContentScriptManager;
 
 // ExtensionSystem manages the lifetime of many of the services used by the
 // extensions and apps system, and it handles startup and shutdown as needed.
 // Eventually, we'd like to make more of these services into KeyedServices in
 // their own right.
 class ExtensionSystem : public KeyedService {
  public:
   ExtensionSystem();
   ~ExtensionSystem() override;
 
@@ skipping 41 matching lines @@
   // The ErrorConsole is created at startup.
   virtual ErrorConsole* error_console() = 0;
 
   // The InstallVerifier is created at startup.
   virtual InstallVerifier* install_verifier() = 0;
 
   // Returns the QuotaService that limits calls to certain extension functions.
   // Lives on the UI thread. Created at startup.
   virtual QuotaService* quota_service() = 0;
 
+  // The WebViewContentScriptManager is created at startup.
+  virtual WebViewContentScriptManager* web_view_content_script_manager() = 0;
+
   // Called by the ExtensionService that lives in this system. Gives the
   // info map a chance to react to the load event before the EXTENSION_LOADED
   // notification has fired. The purpose for handling this event first is to
   // avoid race conditions by making sure URLRequestContexts learn about new
   // extensions before anything else needs them to know.
   virtual void RegisterExtensionWithRequestContexts(
       const Extension* extension) {}
 
   // Called by the ExtensionService that lives in this system. Lets the
   // info map clean up its RequestContexts once all the listeners to the
@@ skipping 11 matching lines @@
   // Get a set of extensions that depend on the given extension.
   // TODO(elijahtaylor): Move SharedModuleService out of chrome/browser
   // so it can be retrieved from ExtensionSystem directly.
   virtual scoped_ptr<ExtensionSet> GetDependentExtensions(
       const Extension* extension) = 0;
 };
 
 }  // namespace extensions
 
 #endif  // EXTENSIONS_BROWSER_EXTENSION_SYSTEM_H_