Update .DEPS.git

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@262943 0039d316-1c4b-4281-b951-d872f2087c98

.DEPS.git

@@ -11,7 +11,7 @@ vars = {
     'git_url':
          'https://chromium.googlesource.com',
     'webkit_rev':
-         '@c46054d2d370739b7eec8584eaa7c332ea8eed34',
+         '@5c6fb086ff6311d1faa3f733a784da6d0cf1612f',
     'angle_revision':
          '740a2f8daa9cc45c53ecf7333c3ae5aa64c821f8'
 }