[gn] Port linux_use_bundled_binutils_override GN variable

build_overrides/build.gni

Index: build_overrides/build.gni
diff --git a/build_overrides/build.gni b/build_overrides/build.gni
index 0c3e980c422307934a50d97eff131ab9b3c7c55a..6b8a4ff21921a10b5c13b323e397dd10aaa99558 100644
--- a/build_overrides/build.gni
+++ b/build_overrides/build.gni
@@ -17,6 +17,9 @@ build_with_chromium = false
 # Some non-Chromium builds don't support building java targets.
 enable_java_templates = false
 
+# Some non-Chromium builds don't use Chromium's third_party/binutils.

[Lei Zhang, 2016/08/31 07:41:37]

This should say "V8 uses Chromium's third_party/binutils to speed up linking."

[Michael Achenbach, 2016/08/31 08:31:09]

Hmm, yea - I didn't tidy any of the comments here. Feel free to change it. I
filed http://crbug.com/642641 for the general probelm.

+linux_use_bundled_binutils_override = true
+
 # Allows different projects to specify their own suppressions files.
 asan_suppressions_file = "//build/sanitizers/asan_suppressions.cc"
 lsan_suppressions_file = "//build/sanitizers/lsan_suppressions.cc"