Bug 1814985 - part1 : remove experimental API 'document.autoplayPolicy'. r=media-playback-reviewers,emilio,padenot

Differential Revision: https://phabricator.services.mozilla.com/D168856

dom/base/Document.cpp

@@ -22,7 +22,6 @@
 #include <limits>
 #include <type_traits>
 #include "Attr.h"
-#include "AutoplayPolicy.h"
 #include "ErrorList.h"
 #include "ExpandedPrincipal.h"
 #include "MainThreadUtils.h"
@@ -16227,10 +16226,6 @@ void Document::SetDocTreeHadMedia() {
   }
 }
 
-DocumentAutoplayPolicy Document::AutoplayPolicy() const {
-  return media::AutoplayPolicy::IsAllowedToPlay(*this);
-}
-
 void Document::MaybeAllowStorageForOpenerAfterUserInteraction() {
   if (!CookieJarSettings()->GetRejectThirdPartyContexts()) {
     return;

dom/base/Document.h

@@ -3695,10 +3695,6 @@ class Document : public nsINode,
   bool UserHasInteracted() { return mUserHasInteracted; }
   void ResetUserInteractionTimer();
 
-  // This method would return current autoplay policy, it would be "allowed"
-  // , "allowed-muted" or "disallowed".
-  DocumentAutoplayPolicy AutoplayPolicy() const;
-
   // This should be called when this document receives events which are likely
   // to be user interaction with the document, rather than the byproduct of
   // interaction with the browser (i.e. a keypress to scroll the view port,

dom/media/autoplay/test/browser/browser.ini

@@ -11,7 +11,6 @@ support-files =
   file_video.html
   head.js
 
-[browser_autoplay_policy.js]
 [browser_autoplay_policy_detection_global_sticky.js]
 [browser_autoplay_policy_detection_global_and_site_sticky.js]
 [browser_autoplay_policy_play_twice.js]

dom/media/autoplay/test/browser/browser_autoplay_policy.js

@@ -1,78 +0,0 @@
-/**
- * This test is used to ensure we can get the correct document's autoplay policy
- * under different situations.
- * Spec discussion : https://github.com/WICG/autoplay/issues/1
- */
-const PAGE = GetTestWebBasedURL("file_empty.html");
-
-function setupTestPreferences(isAllowedAutoplay, isAllowedMuted) {
-  let autoplayDefault = SpecialPowers.Ci.nsIAutoplay.ALLOWED;
-  if (!isAllowedAutoplay) {
-    autoplayDefault = isAllowedMuted
-      ? SpecialPowers.Ci.nsIAutoplay.BLOCKED
-      : SpecialPowers.Ci.nsIAutoplay.BLOCKED_ALL;
-  }
-  return SpecialPowers.pushPrefEnv({
-    set: [
-      ["dom.media.autoplay.autoplay-policy-api", true],
-      ["media.autoplay.default", autoplayDefault],
-      ["media.autoplay.blocking_policy", 0],
-    ],
-  });
-}
-
-async function checkAutoplayPolicy(expectedAutoplayPolicy) {
-  is(
-    content.document.autoplayPolicy,
-    expectedAutoplayPolicy,
-    `Autoplay policy is correct.`
-  );
-}
-
-add_task(async function testAutoplayPolicy() {
-  await BrowserTestUtils.withNewTab(
-    {
-      gBrowser,
-      url: PAGE,
-    },
-    async browser => {
-      info(`- Allow all kinds of media to autoplay -`);
-      let isAllowedAutoplay = true;
-      let isAllowedMuted = true;
-      await setupTestPreferences(isAllowedAutoplay, isAllowedMuted);
-      await SpecialPowers.spawn(browser, ["allowed"], checkAutoplayPolicy);
-
-      info(
-        `- Allow all kinds of media to autoplay even if changing the pref for muted media -`
-      );
-      isAllowedAutoplay = true;
-      isAllowedMuted = false;
-      await setupTestPreferences(isAllowedAutoplay, isAllowedMuted);
-      await SpecialPowers.spawn(browser, ["allowed"], checkAutoplayPolicy);
-
-      info(`- Disable autoplay for audible media -`);
-      isAllowedAutoplay = false;
-      isAllowedMuted = true;
-      await setupTestPreferences(isAllowedAutoplay, isAllowedMuted);
-      await SpecialPowers.spawn(
-        browser,
-        ["allowed-muted"],
-        checkAutoplayPolicy
-      );
-
-      info(`- Disable autoplay for all kinds of media -`);
-      isAllowedAutoplay = false;
-      isAllowedMuted = false;
-      await setupTestPreferences(isAllowedAutoplay, isAllowedMuted);
-      await SpecialPowers.spawn(browser, ["disallowed"], checkAutoplayPolicy);
-
-      info(
-        `- Simulate user gesture activation which would allow all kinds of media to autoplay -`
-      );
-      await SpecialPowers.spawn(browser, [], async () => {
-        content.document.notifyUserGestureActivation();
-      });
-      await SpecialPowers.spawn(browser, ["allowed"], checkAutoplayPolicy);
-    }
-  );
-});

dom/webidl/Document.webidl

@@ -565,12 +565,6 @@ enum DocumentAutoplayPolicy {
   "disallowed"     // autoplay is not current allowed
 };
 
-// https://github.com/WICG/autoplay/issues/1
-partial interface Document {
-  [Pref="dom.media.autoplay.autoplay-policy-api"]
-  readonly attribute DocumentAutoplayPolicy autoplayPolicy;
-};
-
 // Extension to give chrome JS the ability to determine whether
 // the user has interacted with the document or not.
 partial interface Document {

modules/libpref/init/StaticPrefList.yaml

@@ -3062,14 +3062,6 @@
   value: true
   mirror: always
 
-# This pref is used to enable/disable the `document.autoplayPolicy` API which
-# returns a enum string which presents current autoplay policy and can change
-# overtime based on user session activity.
-- name: dom.media.autoplay.autoplay-policy-api
-  type: bool
-  value: false
-  mirror: always
-
 # Autoplay Policy Detection https://w3c.github.io/autoplay/
 - name: dom.media.autoplay-policy-detection.enabled
   type: RelaxedAtomicBool