Reland of Pass SequencedTaskRunner to PowerSaveBlocker for ui/file ops

content/public/browser/power_save_blocker.h

Index: content/public/browser/power_save_blocker.h
diff --git a/content/public/browser/power_save_blocker.h b/content/public/browser/power_save_blocker.h
index 7b553e7f54e6a27eca02c056b05890f49a763bc1..db3c0f25b70c71da8dd7a8866795bbea9da15e82 100644
--- a/content/public/browser/power_save_blocker.h
+++ b/content/public/browser/power_save_blocker.h
@@ -8,6 +8,9 @@
 #include <memory>
 #include <string>
 
+#include "base/memory/ref_counted.h"
+#include "base/sequenced_task_runner.h"
+#include "base/single_thread_task_runner.h"
 #include "content/common/content_export.h"
 
 namespace content {
@@ -48,10 +51,12 @@ class CONTENT_EXPORT PowerSaveBlocker {
   // |reason| and |description| (a more-verbose, human-readable justification of
   // the blocking) may be provided to the underlying system APIs on some
   // platforms.
-  static std::unique_ptr<PowerSaveBlocker> Create(
+  static std::unique_ptr<PowerSaveBlocker> CreateWithTaskRunners(
       PowerSaveBlockerType type,
       Reason reason,
-      const std::string& description);
+      const std::string& description,
+      scoped_refptr<base::SequencedTaskRunner> ui_task_runner,
+      scoped_refptr<base::SingleThreadTaskRunner> file_task_runner);
 };
 
 }  // namespace content