Update .DEPS.git

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@282816 0039d316-1c4b-4281-b951-d872f2087c98

.DEPS.git

@@ -9,7 +9,7 @@ vars = {
     'git_url':
          'https://chromium.googlesource.com',
     'webkit_rev':
-         '@3d0387e914b616244bf90888c07a811d266ae6bc',
+         '@bb8305a8c711fd29e5aa85a10e90f7606be643da',
     'angle_revision':
          '787fc03f15a0c4440d023659f267175fa3979808'
 }