Add webvr.info repo to DEPS

Adds the mirrored repo for webvr.info to the DEPS file. The repo contains
a number of WebVR samples that we plan on using for various performance
tests.

Repo was mirrored in
https://bugs.chromium.org/p/chromium/issues/detail?id=748086

Bug: 726906
Change-Id: Icdf4697d2c65bccfd1a0c34004bb27c27b69ef07
Reviewed-on: https://chromium-review.googlesource.com/590587
Reviewed-by: Brandon Jones <bajones@chromium.org>
Commit-Queue: Brian Sheedy <bsheedy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#490036}

.gitignore

@@ -139,6 +139,7 @@ vs-chromium-project.txt
 /chrome/test/data/perf/private/
 /chrome/test/data/perf/third_party/
 /chrome/test/data/plugin/
+/chrome/test/data/vr/webvr_info/
 /chrome/test/data/webrtc/resources
 /chrome/test/media_router/internal
 /chrome/tools/memory

DEPS

@@ -195,6 +195,9 @@ deps = {
   'src/chrome/test/data/perf/frame_rate/content':
     Var('chromium_git') + '/chromium/frame_rate/content.git' + '@' + 'c10272c88463efeef6bb19c9ec07c42bc8fe22b9',
 
+  'src/chrome/test/data/vr/webvr_info':
+    Var('chromium_git') + '/external/github.com/toji/webvr.info.git' + '@' + '932fd58075e564727b5525681d6b9293b41a90f7',
+
   'src/third_party/bidichecker':
     Var('chromium_git') + '/external/bidichecker/lib.git' + '@' + '97f2aa645b74c28c57eca56992235c79850fa9e0',