Fix Resource Priorities and Scheduling (Blink Side)

Source/core/frame/Settings.in

Index: Source/core/frame/Settings.in
diff --git a/Source/core/frame/Settings.in b/Source/core/frame/Settings.in
index da6747173667f07e1749daf6f0cd69bc0fffacb1..0f820b620c0e103914048fc4306023b2ad9d5616 100644
--- a/Source/core/frame/Settings.in
+++ b/Source/core/frame/Settings.in
@@ -363,3 +363,15 @@ mainResourceOnlyProgress initial=false
 # Do we want to try to save screen real estate in the media player by hiding
 # the volume slider / mute button?
 preferHiddenVolumeControls initial=false
+
+# Controls for resource fetch prioritization.
+# Overall rationale and details here: https://docs.google.com/document/d/1bCDuq9H1ih9iNjgzyAL0gpwNFiEP4TZS-YLRp_RuMlc/edit?usp=sharing
+fetchDeferLateScripts initial=false
+fetchIncreaseFontPriority initial=false
+fetchIncreaseAsyncScriptPriority initial=false
+# Increases the priorities for CSS, Scripts, Fonts and Images all by one level
+# and parser-blocking scripts and visible images by 2.
+# This is used in conjunction with logic on the Chrome side to raise the threshold
+# of "layout-blocking" resources and provide a boost to resources that are needed
+# as soon as possible for something currently on the screen.
+fetchIncreasePriorities initial=false