Roll buildtools df36429e18..73ddd64be6

  In order to roll GN 2c6f9299ed..157d5de447 (r509075:r514519) and pick up
  the following changes:

  c498275a0841 Fix roll_gn.py script.
  8d849d4ce22a [GN] Use basename for PRODUCT_NAME in Xcode project.
  1dc34c0d9553 PPC/s390: enable gn build on s390x and ppc64le
  8db77a10a3b9 Revert "[GN] Remove a duplication of a source type check"
  697f302d91e7 [GN fuzzer] Stack overflow fix.
  0738f52d1198 Support --ninja-extra-args with --ide=vs
  29b1eb6e480f Fix bootstrap.py
  77c3902ed1f5 Fix spelling of "associated" in code/docs
  965d239e5b63 Rename the win8_chromium_gn_upload bot.
  c5f65876ea05 Vim: Don't prepend to runtimepath

[email protected]

Change-Id: Ic17afc7a57af110dbcea6bba00deaa5cd86052df
Reviewed-on: https://chromium-review.googlesource.com/757473
Reviewed-by: Yuke Liao <[email protected]>
Reviewed-by: Dirk Pranke <[email protected]>
Commit-Queue: Yuke Liao <[email protected]>
Cr-Commit-Position: refs/heads/master@{#514690}
diff --git a/DEPS b/DEPS
index 5ac3cc2..ba7dd10 100644
--- a/DEPS
+++ b/DEPS
@@ -89,7 +89,7 @@
   # 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': 'df36429e1847e38fda6a7413ba1aa2cbafbc4a34',
+  'buildtools_revision': '73ddd64be624a6f935f312a72d2da7f0ed70daa5',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling SwiftShader
   # and whatever else without interference from each other.