Disable UDPSocketTest.SharedMulticastAddress on iOS.

Bug: 947115
Change-Id: I2629dc9b057697613857c9d27deb29b01a581e9e
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1545708
Auto-Submit: Misha Efimov <[email protected]>
Reviewed-by: Zhongyi Shi <[email protected]>
Commit-Queue: Zhongyi Shi <[email protected]>
Cr-Commit-Position: refs/heads/master@{#648329}
1 file changed