1. Audio element should also repect auotplay setting

fix brave/browser-laptop#11988
fix brave/browser-laptop#11527

2. Don't check user initiated video
fix brave/browser-laptop#12149

3. Default allow muted media
fix brave/browser-laptop#12152

4. Default allow for local files
fix brave/browser-laptop#8929

Auditors: @bridiver, @bbondy, @bsclifton

patches/master_patch.patch

@@ -1893,22 +1893,10 @@ index 19c7b569f19849f8fbb26c1faf2ac52f8fe7c566..0294416a183a13cd925adf89dd587289
  if (GetWebMediaPlayer())
  GetWebMediaPlayer()->SetVolume(EffectiveMediaVolume());
 diff --git a/third_party/WebKit/Source/core/html/media/AutoplayPolicy.cpp b/third_party/WebKit/Source/core/html/media/AutoplayPolicy.cpp
-index 9162bc3ba51153a494aa218007511054cdebbad7..e685ea161db22661d3a643cd37df8924c4439d15 100644
+index 9162bc3ba51153a494aa218007511054cdebbad7..5ac1a5971a2d9c767210d350944bbb45c766e208 100644
 --- a/third_party/WebKit/Source/core/html/media/AutoplayPolicy.cpp
 +++ b/third_party/WebKit/Source/core/html/media/AutoplayPolicy.cpp
-@@ -264,6 +264,11 @@ void AutoplayPolicy::UnlockUserGesture() {
- }
-
- bool AutoplayPolicy::IsGestureNeededForPlayback() const {
-+ // MUON(darkdh): check autoplay setting
-+ if (!IsAutoplayAllowedPerSettings()) {
-+ return true;
-+ }
-+
- if (!IsLockedPendingUserGesture())
- return false;
-
-@@ -280,14 +285,16 @@ bool AutoplayPolicy::IsGestureNeededForPlaybackIfPendingUserGestureIsLocked()
+@@ -280,15 +280,20 @@ bool AutoplayPolicy::IsGestureNeededForPlaybackIfPendingUserGestureIsLocked()
  // - Data Saver is not enabled;
  // - Preload was not disabled (low end devices);
  // - Autoplay is enabled in settings;
@@ -1920,6 +1908,7 @@ index 9162bc3ba51153a494aa218007511054cdebbad7..e685ea161db22661d3a643cd37df8924
 - element_->GetDocument()
 - .GetSettings()
 - ->GetForcePreloadNoneForMediaElements()) &&
+- IsAutoplayAllowedPerSettings()) {
 + // if (element_->IsHTMLVideoElement() && element_->muted() &&
 + // RuntimeEnabledFeatures::AutoplayMutedVideosEnabled() &&
 + // !(element_->GetDocument().GetSettings() &&
@@ -1928,11 +1917,15 @@ index 9162bc3ba51153a494aa218007511054cdebbad7..e685ea161db22661d3a643cd37df8924
 + // element_->GetDocument()
 + // .GetSettings()
 + // ->GetForcePreloadNoneForMediaElements()) &&
-+ // MUON(darkdh): only check autoplay setting
-+ if (element_->IsHTMLVideoElement() &&
- IsAutoplayAllowedPerSettings()) {
++ // MUON(darkdh): default allow muted media and local files
++ // only check autoplay setting for non-muted and non-local one
++ if ((element_->IsHTMLVideoElement() || element_->IsAudioElement()) &&
++ (element_->muted() ||
++ element_->GetDocument().origin() == String("null") ||
++ IsAutoplayAllowedPerSettings())) {
  return false;
  }
+
 diff --git a/third_party/WebKit/Source/platform/bindings/V8PerIsolateData.cpp b/third_party/WebKit/Source/platform/bindings/V8PerIsolateData.cpp
 index 7ee2fa858b93e1dd42ac27f982fb61eaf597aad4..b1c96c229077859865fd5ea03cdbd7747880e216 100644
 --- a/third_party/WebKit/Source/platform/bindings/V8PerIsolateData.cpp