Fix comment in BrowsingDataRemover

Fix spelling mistake. The constant is called FILTERABLE_DATA_TYPES and not
FILTERABLE_DATATYPES.

Tbr: jochen@chromium.org

Change-Id: Id01c1081169aadc7544d1bd2beaf5050bdb26cf1
Reviewed-on: https://chromium-review.googlesource.com/1142782Reviewed-by: Jochen Eisinger <jochen@chromium.org>
Reviewed-by: Martin Šrámek <msramek@chromium.org>
Commit-Queue: Christian Dullweber <dullweber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#576449}

content/public/browser/browsing_data_remover.h

@@ -168,7 +168,7 @@ class BrowsingDataRemover {
 
   // Like Remove(), but in case of URL-keyed only removes data whose URL match
   // |filter_builder| (e.g. are on certain origin or domain).
-  // RemoveWithFilter() currently only works with FILTERABLE_DATATYPES.
+  // RemoveWithFilter() currently only works with FILTERABLE_DATA_TYPES.
   virtual void RemoveWithFilter(
       const base::Time& delete_begin,
       const base::Time& delete_end,