PM: Fix two comments.

Removes an old TODO and revises another comment.

BUG=None
TEST=None

Change-Id: I2342ae2a8af225246c57ae5c26b58be3985cc95a
Reviewed-on: https://chromium-review.googlesource.com/201108
Tested-by: Gilad Arnold <garnold@chromium.org>
Reviewed-by: Alex Vakulenko <avakulenko@chromium.org>
Commit-Queue: Gilad Arnold <garnold@chromium.org>
diff --git a/policy_manager/policy.h b/policy_manager/policy.h
index 22d651e..f5fd257 100644
--- a/policy_manager/policy.h
+++ b/policy_manager/policy.h
@@ -43,7 +43,7 @@
   int scatter_check_threshold;
   // Minimum/maximum check threshold values.
   // TODO(garnold) These appear to not be related to the current update and so
-  // should probably be obtained vs variables ia UpdaterProvider.
+  // should probably be obtained as variables via UpdaterProvider.
   int scatter_check_threshold_min;
   int scatter_check_threshold_max;
 };