Commit 245ed3e1 authored by Ben Lienhart's avatar Ben Lienhart
Browse files

Bug 1758367 - Implemented finer-grained RFP check in MediaDevices for cut-over of ShouldRFP. r=tjr 

Differential Revision: https://phabricator.services.mozilla.com/D140496
parent 494009e5

dom/media/MediaDevices.cpp

+10 −2
Original line number Diff line number Diff line
@@ -689,9 +689,17 @@ void MediaDevices::OnDeviceChange() { 


  // Do not fire event to content script when

  // privacy.resistFingerprinting is true.

  if (nsContentUtils::ShouldResistFingerprinting()) {



  if (nsContentUtils::ShouldResistFingerprinting(

          "Guarding the more expensive RFP check with a simple one")) {

    nsCOMPtr<nsIGlobalObject> global = xpc::NativeGlobal(GetWrapper());

    nsCOMPtr<nsPIDOMWindowInner> owner = do_QueryInterface(global);



    Document* doc = owner->GetExtantDoc();

    if (nsContentUtils::ShouldResistFingerprinting(doc)) {

      return;

    }

  }



  mHaveUnprocessedDeviceListChange = true;

  MaybeResumeDeviceExposure();