renderer: implement multiple permission requesting

content/public/browser/permission_manager.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 CONTENT_PUBLIC_BROWSER_PERMISSION_MANAGER_H_
 #define CONTENT_PUBLIC_BROWSER_PERMISSION_MANAGER_H_
 
 #include "content/common/content_export.h"
 #include "content/public/common/permission_status.mojom.h"
 
@@ skipping 16 matching lines @@
   // When the permission request is handled, whether it failed, timed out or
   // succeeded, the |callback| will be run.
   virtual void RequestPermission(
       PermissionType permission,
       RenderFrameHost* render_frame_host,
       int request_id,
       const GURL& requesting_origin,
       bool user_gesture,
       const base::Callback<void(PermissionStatus)>& callback) = 0;
 
+  using StatusVector = std::vector<PermissionStatus>;
+  virtual void RequestPermissions(
+      const std::vector<PermissionType>& permission,
+      RenderFrameHost* render_frame_host,
+      int request_id,
+      const GURL& requesting_origin,
+      bool user_gesture,
+      const base::Callback<void(const StatusVector&)>& callback) = 0;
+
   // Cancels a previously requested permission. The given parameter must match
   // the ones passed to the RequestPermission call.
   virtual void CancelPermissionRequest(PermissionType permission,
                                        RenderFrameHost* render_frame_host,
                                        int request_id,
                                        const GURL& requesting_origin) = 0;
 
+   // Cancels a previously requested batch permission request.
+   // The given parameters must match the ones passed to the
+   // RequestPermission call.
+   virtual void CancelPermissionsRequest(RenderFrameHost* render_frame_host,
+                                         int request_id) = 0;

[mlamouri (slow - plz ping), 2015/08/18 13:37:15]

Would it make sense to change CancelPermission to that or is PermissionType
required for something? (I assume in both case we can pass the origin).

[Lalit Maganti, 2015/08/20 14:23:30]

In CancelPermission, it is used to retrieve the context.

In any case, with unification of code paths this has changed.

+
   // Returns the permission status of a given requesting_origin/embedding_origin
   // tuple. This is not taking a RenderFrameHost because the call might happen
   // outside of a frame context.
   virtual PermissionStatus GetPermissionStatus(
       PermissionType permission,
       const GURL& requesting_origin,
       const GURL& embedding_origin) = 0;
 
   // Sets the permission back to its default for the requesting_origin/
   // embedding_origin tuple.
@@ skipping 18 matching lines @@
 
   // Unregisters from permission status change notifications.
   // The |subscription_id| must match the value returned by the
   // SubscribePermissionStatusChange call.
   virtual void UnsubscribePermissionStatusChange(int subscription_id) = 0;
 };
 
 }  // namespace content
 
 #endif // CONTENT_PUBLIC_BROWSER_PERMISSION_MANAGER_H_