Added headless permission manager. This permissions manager simply acks all permission requests wit…

headless/lib/browser/headless_permission_manager.h

+// Copyright 2017 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 HEADLESS_LIB_BROWSER_HEADLESS_PERMISSION_MANAGER_H_
+#define HEADLESS_LIB_BROWSER_HEADLESS_PERMISSION_MANAGER_H_
+
+#include "base/callback_forward.h"
+#include "base/macros.h"
+#include "content/public/browser/permission_manager.h"
+
+namespace headless {
+
+class HeadlessPermissionManager : public content::PermissionManager {
+ public:
+  HeadlessPermissionManager();
+  ~HeadlessPermissionManager() override;
+
+  // PermissionManager implementation.
+  int RequestPermission(
+      content::PermissionType permission,
+      content::RenderFrameHost* render_frame_host,
+      const GURL& requesting_origin,
+      bool user_gesture,
+      const base::Callback<void(blink::mojom::PermissionStatus)>& callback)
+      override;
+  int RequestPermissions(
+      const std::vector<content::PermissionType>& permission,
+      content::RenderFrameHost* render_frame_host,
+      const GURL& requesting_origin,
+      bool user_gesture,
+      const base::Callback<
+          void(const std::vector<blink::mojom::PermissionStatus>&)>& callback)
+      override;
+  void CancelPermissionRequest(int request_id) override;
+  void ResetPermission(content::PermissionType permission,
+                       const GURL& requesting_origin,
+                       const GURL& embedding_origin) override;
+  blink::mojom::PermissionStatus GetPermissionStatus(
+      content::PermissionType permission,
+      const GURL& requesting_origin,
+      const GURL& embedding_origin) override;
+  int SubscribePermissionStatusChange(
+      content::PermissionType permission,
+      const GURL& requesting_origin,
+      const GURL& embedding_origin,
+      const base::Callback<void(blink::mojom::PermissionStatus)>& callback)
+      override;
+  void UnsubscribePermissionStatusChange(int subscription_id) override;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(HeadlessPermissionManager);
+};
+
+}  // namespace content
+
+#endif  // HEADLESS_LIB_BROWSER_HEADLESS_PERMISSION_MANAGER_H_