Declarative content scripts: Browser-side: per-extension shared memory regions (lazily loaded)

extensions/shell/browser/shell_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_SHELL_BROWSER_SHELL_EXTENSION_SYSTEM_H_
 #define EXTENSIONS_SHELL_BROWSER_SHELL_EXTENSION_SYSTEM_H_
 
 #include <vector>
 
 #include "base/compiler_specific.h"
 #include "extensions/browser/extension_system.h"
 #include "extensions/common/one_shot_event.h"
 
 class BrowserContextKeyedServiceFactory;
 
 namespace base {
 class FilePath;
 }
 
 namespace content {
 class BrowserContext;
 }
 
 namespace extensions {
 
+class DeclarativeUserScriptMaster;
 class EventRouter;
 class InfoMap;
 class LazyBackgroundTaskQueue;
 class ProcessManager;
 class RendererStartupHelper;
+class SharedUserScriptMaster;
 
 // A simplified version of ExtensionSystem for app_shell. Allows
 // app_shell to skip initialization of services it doesn't need.
 class ShellExtensionSystem : public ExtensionSystem {
  public:
   explicit ShellExtensionSystem(content::BrowserContext* browser_context);
   virtual ~ShellExtensionSystem();
 
   // Loads an unpacked application from a directory. Returns true on success.
   bool LoadApp(const base::FilePath& app_dir);
 
   // Launch the currently loaded app.
   void LaunchApp();
 
   // KeyedService implementation:
   virtual void Shutdown() OVERRIDE;
 
   scoped_refptr<Extension> extension() { return extension_; }
 
   // ExtensionSystem implementation:
   virtual void InitForRegularProfile(bool extensions_enabled) OVERRIDE;
   virtual ExtensionService* extension_service() OVERRIDE;
   virtual RuntimeData* runtime_data() OVERRIDE;
   virtual ManagementPolicy* management_policy() OVERRIDE;
-  virtual UserScriptMaster* user_script_master() OVERRIDE;
+  virtual SharedUserScriptMaster* shared_user_script_master() OVERRIDE;
   virtual ProcessManager* process_manager() OVERRIDE;
   virtual StateStore* state_store() OVERRIDE;
   virtual StateStore* rules_store() OVERRIDE;
   virtual InfoMap* info_map() OVERRIDE;
   virtual LazyBackgroundTaskQueue* lazy_background_task_queue() OVERRIDE;
   virtual EventRouter* event_router() OVERRIDE;
   virtual ExtensionWarningService* warning_service() OVERRIDE;
   virtual Blacklist* blacklist() OVERRIDE;
   virtual ErrorConsole* error_console() OVERRIDE;
   virtual InstallVerifier* install_verifier() OVERRIDE;
   virtual QuotaService* quota_service() OVERRIDE;
   virtual void RegisterExtensionWithRequestContexts(
       const Extension* extension) OVERRIDE;
   virtual void UnregisterExtensionWithRequestContexts(
       const std::string& extension_id,
       const UnloadedExtensionInfo::Reason reason) OVERRIDE;
   virtual const OneShotEvent& ready() const OVERRIDE;
   virtual ContentVerifier* content_verifier() OVERRIDE;
   virtual scoped_ptr<ExtensionSet> GetDependentExtensions(
       const Extension* extension) OVERRIDE;
+  virtual DeclarativeUserScriptMaster*
+      GetDeclarativeUserScriptMasterByExtension(
+          const ExtensionId& extension_id) OVERRIDE;
 
  private:
   content::BrowserContext* browser_context_;  // Not owned.
 
   // Extension ID for the app.
   std::string app_id_;
 
   scoped_refptr<Extension> extension_;
 
   // Data to be accessed on the IO thread. Must outlive process_manager_.
   scoped_refptr<InfoMap> info_map_;
 
   scoped_ptr<RuntimeData> runtime_data_;
   scoped_ptr<LazyBackgroundTaskQueue> lazy_background_task_queue_;
   scoped_ptr<EventRouter> event_router_;
   scoped_ptr<ProcessManager> process_manager_;
   scoped_ptr<QuotaService> quota_service_;
 
   // Signaled when the extension system has completed its startup tasks.
   OneShotEvent ready_;
 
   DISALLOW_COPY_AND_ASSIGN(ShellExtensionSystem);
 };
 
 }  // namespace extensions
 
 #endif  // EXTENSIONS_SHELL_BROWSER_SHELL_EXTENSION_SYSTEM_H_