Update GTM to 3c3111d3aefe and re-enable -Wformat

Since clang r308067, -Wformat is able to check that an argument's type
is appropriate for the %zd format specifier. Some uses in GTM were not,
and needed to be adjusted. -Wformat was disabled in GTM in 1c688af81fcf
and can now be re-enabled.

3c3111d3aefe Cast NSInteger to long for formatting as %ld

Bug: 747643
Change-Id: I873e9771a83f95d32e186ef3779966d6ebfe2718
Reviewed-on: https://chromium-review.googlesource.com/583407
Commit-Queue: Mark Mentovai <[email protected]>
Reviewed-by: Nico Weber <[email protected]>
Cr-Commit-Position: refs/heads/master@{#489040}
diff --git a/DEPS b/DEPS
index f2487674..b488071 100644
--- a/DEPS
+++ b/DEPS
@@ -76,7 +76,7 @@
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling google-toolbox-for-mac
   # and whatever else without interference from each other.
-  'google_toolbox_for_mac_revision': 'ec72a2bc500a716369c383837bffdc7d2a22855b',
+  'google_toolbox_for_mac_revision': '3c3111d3aefe907c8c0f0e933029608d96ceefeb',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling lighttpd
   # and whatever else without interference from each other.