Implement Web Restrictions in WebView.

components/supervised_user_error_page/supervised_user_gin_wrapper.h

Index: components/supervised_user_error_page/supervised_user_gin_wrapper.h
diff --git a/components/supervised_user_error_page/supervised_user_gin_wrapper.h b/components/supervised_user_error_page/supervised_user_gin_wrapper.h
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+// 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_GIN_WRAPPER_H_
+#define COMPONENTS_WEB_RESTRICTION_WEB_RESTRICTION_GIN_WRAPPER_H_
+
+#include "base/macros.h"
+#include "base/memory/weak_ptr.h"
+#include "components/web_restrictions/interfaces/web_restrictions.mojom.h"
+#include "content/public/renderer/render_frame_observer.h"
+#include "gin/wrappable.h"
+#include "url/gurl.h"
+
+namespace content {
+class RenderFrame;
+}
+
+namespace supervised_user_error_page {
+
+class SupervisedUserGinWrapper
+    : public gin::Wrappable<SupervisedUserGinWrapper>,
+      public content::RenderFrameObserver {
+ public:
+  static gin::WrapperInfo kWrapperInfo;
+
+  static void Install(content::RenderFrame* render_frame,
+                      const std::string& url,
+                      const web_restrictions::mojom::WebRestrictionsPtr&
+                          web_restrictions_service);
+
+ private:
+  SupervisedUserGinWrapper(content::RenderFrame* render_frame,
+                           const std::string& url,
+                           const web_restrictions::mojom::WebRestrictionsPtr&
+                               web_restrictions_service);
+  ~SupervisedUserGinWrapper() override;
+
+  // Override OnDestruct to prevent the wrapper going away when the
+  // RenderFrame does
+  void OnDestruct() override;
+
+  // Request permission to allow visiting the currently blocked site.
+  bool RequestPermission();
+
+  void OnAccessRequestAdded(bool success);
+
+  // gin::WrappableBase
+  gin::ObjectTemplateBuilder GetObjectTemplateBuilder(
+      v8::Isolate* isolate) override;
+
+  const std::string url_;
+  const web_restrictions::mojom::WebRestrictionsPtr& web_restrictions_service_;
+  base::WeakPtrFactory<SupervisedUserGinWrapper> weak_ptr_factory_;
+
+  DISALLOW_COPY_AND_ASSIGN(SupervisedUserGinWrapper);
+};
+
+}  // namespace web_restrictions.
+
+#endif  // COMPONENTS_WEB_RESTRICTION_WEB_RESTRICTION_GIN_WRAPPER_H_