Bug 1294576 - Remove device sharing indicator on location changes, r=johannh.

browser/base/content/browser.js

@@ -4837,6 +4837,12 @@ var TabsProgressListener = {
     if (!Object.getOwnPropertyDescriptor(window, "PopupNotifications").get)
       PopupNotifications.locationChange(aBrowser);
 
+    let tab = gBrowser.getTabForBrowser(aBrowser);
+    if (tab && tab._sharingState) {
+      gBrowser.setBrowserSharing(aBrowser, {});
+      webrtcUI.forgetStreamsFromBrowser(aBrowser);
+    }
+
     gBrowser.getNotificationBox(aBrowser).removeTransientNotifications();
 
     FullZoom.onLocationChange(aLocationURI, false, aBrowser);

browser/base/content/test/webrtc/browser_devices_get_user_media_in_frame.js

@@ -197,6 +197,41 @@ var gTests = [
     yield expectNoObserverCalled();
     yield checkNotSharing();
   }
+},
+
+{
+  desc: "getUserMedia audio+video: reloading the top level page removes all sharing UI",
+  run: function* checkReloading() {
+    let promise = promisePopupNotificationShown("webRTC-shareDevices");
+    yield promiseRequestDevice(true, true, "frame1");
+    yield promise;
+    yield expectObserverCalled("getUserMedia:request");
+    checkDeviceSelectors(true, true);
+
+    let indicator = promiseIndicatorWindow();
+    yield promiseMessage("ok", () => {
+      PopupNotifications.panel.firstChild.button.click();
+    });
+    yield expectObserverCalled("getUserMedia:response:allow");
+    yield expectObserverCalled("recording-device-events");
+    is((yield getMediaCaptureState()), "CameraAndMicrophone",
+       "expected camera and microphone to be shared");
+
+    yield indicator;
+    yield checkSharingUI({video: true, audio: true});
+
+    info("reloading the web page");
+    promise = promiseObserverCalled("recording-device-events");
+    content.location.reload();
+    yield promise;
+
+    if ((yield promiseTodoObserverNotCalled("recording-device-events")) == 1) {
+      todo(false, "Got the 'recording-device-events' notification twice, likely because of bug 962719");
+    }
+    yield expectObserverCalled("recording-window-ended");
+    yield expectNoObserverCalled();
+    yield checkNotSharing();
+  }
 }
 
 ];

browser/modules/webrtcUI.jsm

@@ -128,6 +128,10 @@ this.webrtcUI = {
     }
   },
 
+  forgetStreamsFromBrowser: function(aBrowser) {
+    this._streams = this._streams.filter(stream => stream.browser != aBrowser);
+  },
+
   showSharingDoorhanger: function(aActiveStream, aType) {
     let browserWindow = aActiveStream.browser.ownerGlobal;
     if (aActiveStream.tab) {