Update NaCl GN toolchain definitions.

DEPS

 # DEPS files look like -*- Python -*-
 
 vars = {
   # These revisions are slices of the chromium repository.
   # Because they come from separate sub-slices, their hashes do not match at
   # equivalent revisions. When updating them, use the roll-dep script
   # to move them to equivalent revisions. Additionally, because not all
   # directories contain commits at each revision, you will need to select
   # revisions at latest revision up to a high watermark from each slice.
   # Document the high watermark here:
-  # chrome_rev: 403388
-  "build_rev": "c80c063b314ab9cc6c3c5955c7444c2fa514bcec", # from cr commit position 403309
+  # chrome_rev: 411082
+  "build_rev": "01ebc7132bdd79aef8a0bdda3fa87ec4cd95d550", # from cr commit position 411082
   "binutils_rev": "8d77853bc9415bcb7bb4206fa2901de7603387db", # from cr commit position 392828
   "libcxx_static_rev": "fd8f9a82862aa40dab0c5bcdea6e498715284f5a", # from cr commit position 369150
   # NOTE: be sure to update clang_lib_version in SConstruct whenever
   # updating this clang_rev (e.g., if LLVM changes from version 3.7 to 3.8).
   "clang_rev": "040101933080540f1e103cf42729147654e7bb08", # from cr commit position 403068
 
   # NOTE!  These five should be kept up to date with their counterparts in
   # chromium/src/DEPS.
   # Be sure to update them when updating the chromium slice revisions above.
   # (This is not essential for Breakpad, because we do not use its code
   # in the build that goes into Chromium.  But we might as well update it too.)
   # You should now use the roll-dep script in depot_tools to do this update.
   "gtest_rev": "6f8a66431cb592dad629028a50b3dd418a408c87",
   "gyp_rev": "c61b0b35c8396bfd59efc6cfc11401d912b0f510",
   "breakpad_rev": "5f638d532312685548d5033618c8a36f73302d0a",
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling build tools
   # and whatever else without interference from each other.
-  'buildtools_revision': "db6179b29f90d28026b0cb23ef71d56ec31b8bd6",
+  'buildtools_revision': "33a32b8aa2b7274d246fcf85ce8f762cf4291418",
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling lss
   # and whatever else without interference from each other.
   'lss_revision': '3f6478ac95edf86cd3da300c2c0d34a438f5dbeb',
 
   # Separately pinned repositories, update with roll-dep individually.
   "third_party_rev": "d4e38e5faf600b39649025e5605d6e7f94518ea7",
   "lcov_rev": "b37daf5968200da8ff520ce65c4e5bce4047dd15", # from svn revision 149720
   "gnu_binutils_rev": "f4003433b61b25666565690caf3d7a7a1a4ec436", # from svn revision 8151
   "mingw_rev": "3cc8b140b883a9fe4986d12cfd46c16a093d3527", # from svn revision 7064
@@ skipping 216 matching lines @@
                "native_client/build/package_version/package_version.py",
                "cleanup",
     ],
   },
 ]
 
 include_rules = [
   "+native_client/src/include",
   "+gtest",
 ]