Add third_party/webrtc_overrides.

third_party/webrtc_overrides/DEPS

Index: third_party/webrtc_overrides/DEPS
diff --git a/third_party/libjingle/overrides/DEPS b/third_party/webrtc_overrides/DEPS
similarity index 78%
copy from third_party/libjingle/overrides/DEPS
copy to third_party/webrtc_overrides/DEPS
index e6e8c640497cbde90783bf8f9c0acf0e449c3161..d2817be7e085d48fd5a6999b565e114f32f05afd 100644
--- a/third_party/libjingle/overrides/DEPS
+++ b/third_party/webrtc_overrides/DEPS
@@ -1,4 +1,5 @@
 include_rules = [
   '+base',
+  '+net/base',
   '+third_party/webrtc',

[jam, 2015/09/22 15:49:38]

is this a circular dependency? i.e. i think third_party/webrtc will also depend
on webrtc_overrides right?

[Henrik Grunell, 2015/09/22 18:57:22]

Well, the overrides replaces the corresponding files in third_party/webrtc, so
it "depends" on the overrides in that sense. Otherwise it wouldn't be overrides,
right? Fwiw there's no DEPS file in third_party/webrtc and there's no explicit
including from webrtc_overrides in third_party/webrtc, only include order magic.

[tommi (sloooow) - chröme, 2015/09/28 15:40:03]

Not really.  There's no explicit dependency from webrtc over to
webrtc_overrides.  The webrtc_overrides folder is just a regular overrides
folder where we inject Chromium implementations into third party libraries via
files (essentially a form of an interface if you will) that the library defines.

See e.g. this original file (literally a "random" example):
https://code.google.com/p/chromium/codesearch#chromium/src/third_party/cachei...

overridden here for Chromium:
https://code.google.com/p/chromium/codesearch#chromium/src/third_party/cachei...

 ]