Roll chromium_revision a6eafec..c086b4e

Relevant changes:
* src/testing/gtest: 8245545..be18681
* src/tools/gyp: 82b0804..194ec65
* src/tools/swarming_client: c44f572..0a795bd
Details: https://chromium.googlesource.com/chromium/src/+/a6eafec..c086b4e/DEPS

Clang version was not updated in this roll.

R=pbos@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/33039004

git-svn-id: http://webrtc.googlecode.com/svn/trunk@8101 4adac7df-926f-26a2-2b94-8c16560cd09d
diff --git a/DEPS b/DEPS
index 0800447..338c509 100644
--- a/DEPS
+++ b/DEPS
@@ -6,7 +6,7 @@
 vars = {
   'extra_gyp_flag': '-Dextra_gyp_flag=0',
   'chromium_git': 'https://chromium.googlesource.com',
-  'chromium_revision': 'a6eafec7a5adaa933252b6601822d0ab312d660a',
+  'chromium_revision': 'c086b4e24d6c6649f99743e46df87f7761dd31d1',
 }
 
 # NOTE: Prefer revision numbers to tags for svn deps. Use http rather than