Remove TaskTraits::with_file_io().

base/task_scheduler/task_traits.h

Index: base/task_scheduler/task_traits.h
diff --git a/base/task_scheduler/task_traits.h b/base/task_scheduler/task_traits.h
index 6f6ab0973693946d9a62b61c6565e6d8c37299fb..835465073e9bc78218bf9edb3c53b98245ef79cb 100644
--- a/base/task_scheduler/task_traits.h
+++ b/base/task_scheduler/task_traits.h
@@ -141,10 +141,6 @@ class BASE_EXPORT TaskTraits {
   // Returns true if tasks with these traits may use base/ sync primitives.
   bool with_base_sync_primitives() const { return with_base_sync_primitives_; }
 
-  // DEPRECATED
-  // TODO(fdoray): Remove this as part of crbug.com/675660
-  bool with_file_io() const { return may_block(); }
-
   // Returns the priority of tasks with these traits.
   TaskPriority priority() const { return priority_; }