Change PepperFlashBrowserHost to use CookieSettings to get the LSO settings

chrome/browser/renderer_host/pepper/flash_lso_settings_helper.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_RENDERER_HOST_PEPPER_FLASH_LSO_SETTINGS_HELPER_H_
+#define CHROME_BROWSER_RENDERER_HOST_PEPPER_FLASH_LSO_SETTINGS_HELPER_H_
+
+#include "base/basictypes.h"
+#include "base/callback.h"
+#include "base/memory/ref_counted.h"
+#include "base/memory/scoped_ptr.h"
+#include "content/public/browser/notification_observer.h"
+#include "content/public/browser/notification_registrar.h"
+#include "ppapi/c/private/ppb_flash.h"
+
+class GURL;
+class Profile;
+
+namespace content {
+class ResourceContext;
+}
+
+namespace chrome {
+
+// This class aids in getting the Flash LSO Settings.
+class FlashLSOSettingsHelper
+    : public base::RefCountedThreadSafe<FlashLSOSettingsHelper>,
+      public content::NotificationObserver {
+ public:
+  explicit FlashLSOSettingsHelper(int render_process_id);
+
+  // Gets the Flash local data restrictions for the given document/plugin URLs.
+  // Should only be called from the IO thread. |callback| will be run with the
+  // data restriction settings on the IO thread. It may be run synchronously or
+  // asynchronously.
+  void GetLocalDataRestrictions(
+      const GURL& document_url,
+      const GURL& plugin_url,
+      const base::Callback<void(PP_FlashLSORestrictions)>& callback);
+
+  // Unregisters profile destruction notifications and posts a task to clear
+  // the resource context. This MUST be called before the last reference to the
+  // object is released.
+  void ShutdownOnUIThread();
+
+ private:
+  virtual ~FlashLSOSettingsHelper();
+  friend class base::RefCountedThreadSafe<FlashLSOSettingsHelper>;
+
+  // Runs |callback| with the local data restrictions for the given resource
+  // context. The resource context is cached locally.
+  void GetLocalDataRestrictionsHelper(
+      const GURL& document_url,
+      const GURL& plugin_url,
+      const base::Callback<void(PP_FlashLSORestrictions)>& callback,
+      content::ResourceContext* resource_context);
+
+  // Gets the resource context for the given render process ID. The resource
+  // context belongs to the Profile which lives on the UI thread so this should
+  // be run on the UI thread. This also registers this class for a notification
+  // on profile destruction so that the resource context is not accessed after
+  // that point.
+  content::ResourceContext* GetResourceContext(int render_process_id);
+
+  // content::NotificationObserver implementation.
+  virtual void Observe(int type,
+                       const content::NotificationSource& source,
+                       const content::NotificationDetails& details) OVERRIDE;
+
+  // Clears |resource_context_| on the IO thread when the profile is destroyed.
+  void ClearResourceContext();
+
+  // The render process ID of the renderer process to get LSO settings for.
+  // Should only be accessed on the IO thread.
+  int render_process_id_;
+
+  // Whether the |resource_context_| has been initialized yet. Should only be
+  // accessed from the IO thread.
+  bool initialized_;
+
+  // For fetching the Flash LSO settings. Should only be accessed from the IO
+  // thread.
+  content::ResourceContext* resource_context_;
+
+  // Registrar for receiving profile destruction notifications. Should only be
+  // accessed from the UI thread.
+  scoped_ptr<content::NotificationRegistrar> registrar_;
+
+  // Whether the object has been shutdown. Should only be accessed from the UI
+  // thread (except in the destructor because this should be set to true before
+  // destruction). This is used for checking only.
+  bool is_shutdown_;
+
+  DISALLOW_COPY_AND_ASSIGN(FlashLSOSettingsHelper);
+};
+
+}  // namespace chrome
+
+#endif  // CHROME_BROWSER_RENDERER_HOST_PEPPER_FLASH_LSO_SETTINGS_HELPER_H_