Reland of Pass SequencedTaskRunner to PowerSaveBlocker for ui/file ops

content/browser/DEPS

Index: content/browser/DEPS
diff --git a/content/browser/DEPS b/content/browser/DEPS
index c651eb38daa61c2c4425a79b3b5dc90cd00534f9..bb34301d939adf9af23626f2efe9711fe9f05bc5 100644
--- a/content/browser/DEPS
+++ b/content/browser/DEPS
@@ -114,7 +114,16 @@ include_rules = [
 
 specific_include_rules = {
   # See https://crbug.com/612337.
-  "power_save_blocker.*\.(cc|h)": [
+  "(power_save_blocker_android\.cc"
+  "|power_save_blocker_android\.h"
+  "|power_save_blocker_chromeos\.cc"
+  "|power_save_blocker_impl\.cc"
+  "|power_save_blocker_impl\.h"
+  "|power_save_blocker_mac\.cc"
+  "|power_save_blocker_ozone\.cc"
+  "|power_save_blocker_win\.cc"
+  "|power_save_blocker_x11\.cc"
+  ")": [
     "-content",
 
     # These will move to //device/power_save_blocker.
@@ -125,7 +134,6 @@ specific_include_rules = {
     "!content/browser/android/content_view_core_impl.h",
     "!content/browser/web_contents/web_contents_impl.h",
     "!content/public/browser/android/content_view_core.h",
-    "!content/public/browser/browser_thread.h",
     "!content/public/browser/web_contents_observer.h",
   ]
 }