Autoplay: use an autoplay policy setting in Blink.

content/renderer/render_view_impl.cc

Index: content/renderer/render_view_impl.cc
diff --git a/content/renderer/render_view_impl.cc b/content/renderer/render_view_impl.cc
index f384b63ffbd426ae35ed426c39744628c4271786..240d565bb6d0edde506cfe5b48f063b5b6676e1c 100644
--- a/content/renderer/render_view_impl.cc
+++ b/content/renderer/render_view_impl.cc
@@ -1056,19 +1056,18 @@ void RenderView::ApplyWebPreferences(const WebPreferences& prefs,
       prefs.do_not_update_selection_on_mutating_selection_range);
 #endif  // defined(OS_ANDROID)
 
-  // TODO(mlamouri): use an AutoplayPolicy in WebSettings.
   switch (prefs.autoplay_policy) {
     case AutoplayPolicy::kNoUserGestureRequired:
-      settings->SetMediaPlaybackRequiresUserGesture(false);
-      settings->SetCrossOriginMediaPlaybackRequiresUserGesture(false);
+      settings->SetAutoplayPolicy(
+          WebSettings::AutoplayPolicy::kNoUserGestureRequired);
       break;
     case AutoplayPolicy::kCrossOriginUserGestureRequired:
-      settings->SetMediaPlaybackRequiresUserGesture(false);
-      settings->SetCrossOriginMediaPlaybackRequiresUserGesture(true);
+      settings->SetAutoplayPolicy(
+          WebSettings::AutoplayPolicy::kCrossOriginUserGestureRequired);
       break;
     case AutoplayPolicy::kUserGestureRequired:
-      settings->SetMediaPlaybackRequiresUserGesture(true);
-      settings->SetCrossOriginMediaPlaybackRequiresUserGesture(false);
+      settings->SetAutoplayPolicy(
+          WebSettings::AutoplayPolicy::kUserGestureRequired);
       break;
   }