Fix the build - forgot to check in a file.

BUG=none
TEST=Bots go green.
TBR=erg
Review URL: http://codereview.chromium.org/3038035

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@54103 0039d316-1c4b-4281-b951-d872f2087c98

chrome/browser/dom_ui/fileicon_source.cc

@@ -5,6 +5,7 @@
 #include "chrome/browser/dom_ui/fileicon_source.h"
 
 #include "base/callback.h"
+#include "base/ref_counted_memory.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/common/time_format.h"