webview: add permission-request event

atom/browser/web_contents_permission_helper.h

@@ -0,0 +1,48 @@
+// Copyright (c) 2016 GitHub, Inc.
+// Use of this source code is governed by the MIT license that can be
+// found in the LICENSE file.
+
+#ifndef ATOM_BROWSER_WEB_CONTENTS_PERMISSION_HELPER_H_
+#define ATOM_BROWSER_WEB_CONTENTS_PERMISSION_HELPER_H_
+
+#include <map>
+#include <string>
+
+#include "base/callback.h"
+#include "content/public/browser/web_contents_user_data.h"
+#include "content/public/common/media_stream_request.h"
+
+namespace atom {
+
+namespace api {
+class WebContents;
+}
+
+// Applies the permission requested for WebContents.
+class WebContentsPermissionHelper
+    : public content::WebContentsUserData<WebContentsPermissionHelper> {
+ public:
+  WebContentsPermissionHelper(content::WebContents* web_contents,
+                              api::WebContents* api_web_contents);
+  ~WebContentsPermissionHelper() override;
+
+  void RequestMediaAccessPermission(
+      const content::MediaStreamRequest& request,
+      const content::MediaResponseCallback& callback);
+  void RequestWebNotificationPermission(const base::Closure& callback);
+
+  void OnPermissionResponse(const std::string& permission, bool allowed);
+
+ private:
+  friend class content::WebContentsUserData<WebContentsPermissionHelper>;
+
+  std::map<std::string, base::Closure> permission_map_;
+
+  api::WebContents* api_web_contents_;  // Weak reference
+
+  DISALLOW_COPY_AND_ASSIGN(WebContentsPermissionHelper);
+};
+
+}  // namespace atom
+
+#endif  // ATOM_BROWSER_WEB_CONTENTS_PERMISSION_HELPER_H_