[WIP] WebRestrictions

components/web_restriction/web_restriction_provider.h

+// Copyright 2015 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 COMPONENTS_WEB_RESTRICTION_WEB_RESTRICTION_PROVIDER_H_
+#define COMPONENTS_WEB_RESTRICTION_WEB_RESTRICTION_PROVIDER_H_
+
+#include "base/callback_forward.h"
+#include "base/macros.h"
+#include "url/gurl.h"
+
+namespace web_restriction {
+
+enum UrlAccess { ALLOW, DISALLOW, UNKNOWN };
+
+class WebRestrictionProvider {
+ public:
+  class Observer {
+   public:
+    virtual void ProviderUpdated();
+  };
+
+  virtual ~WebRestrictionProvider(){};
+
+  virtual UrlAccess ShouldProceed(bool is_main_frame,
+                                  const GURL& url) const = 0;
+
+  virtual void ShouldProceed(
+      bool is_main_frame,
+      const GURL& url,
+      const base::Callback<void(bool)>& callback) const = 0;
+
+  virtual bool SupportsRequest() const = 0;
+
+  virtual bool SupportsCustomErrorPage() const = 0;
+
+  virtual std::string GetErrorHtml() const = 0;
+
+  virtual void RequestPermission(const GURL& url) = 0;
+
+  virtual void AddObserver(Observer* observer) = 0;
+
+  virtual void RemoveObserver(Observer* observer) = 0;
+};
+
+}  // namespace web_restriction
+
+#endif  // COMPONENTS_WEB_RESTRICTION_WEB_RESTRICTION_PROVIDER_H_