Document TaskRunners/TaskTraits/FROM_HERE as implicitly included from post_task.h

base/task_scheduler/post_task.h

Index: base/task_scheduler/post_task.h
diff --git a/base/task_scheduler/post_task.h b/base/task_scheduler/post_task.h
index 70aebd51c402ac15ee132d75fc8d886d2dfe1f49..59bf8f5aaea4822e9fa106f259f88c9811e6ce9f 100644
--- a/base/task_scheduler/post_task.h
+++ b/base/task_scheduler/post_task.h
@@ -7,8 +7,12 @@
 
 #include "base/base_export.h"
 #include "base/callback_forward.h"
-#include "base/location.h"
 #include "base/memory/ref_counted.h"
+
+// To avoid redundant includes: users may omit including the following headers

[robliao, 2016/11/02 17:06:25]

https://google.github.io/styleguide/cppguide.html#Names_and_Order_of_Includes

The language in the style guide does not seem to permit deviation.


Keep this in alphabetical order and then have a comment banner below discussing
the permitted files to omit.

[gab, 2016/11/02 18:18:33]

Done.

+// if they are using their provided data types solely in direct interactions
+// with the post_task.h API.
+#include "base/location.h"
 #include "base/sequenced_task_runner.h"
 #include "base/single_thread_task_runner.h"
 #include "base/task_runner.h"