[MDC roll] Roll Material Components to 686cc976347618f75c9de58d4c1c220eaa8b4976

TBR=smut

Cq-Include-Trybots: master.tryserver.chromium.mac:ios-simulator-cronet;master.tryserver.chromium.mac:ios-simulator-full-configs
Change-Id: If816f31344893f0c903d578e4ea2fe571becd19b
Reviewed-on: https://chromium-review.googlesource.com/912538
Commit-Queue: iOS Autoroller <ios-autoroller@chromium.org>
Reviewed-by: iOS Autoroller <ios-autoroller@chromium.org>
Cr-Commit-Position: refs/heads/master@{#535962}

DEPS

@@ -201,7 +201,7 @@ deps = {
   },
 
   'src/ios/third_party/material_components_ios/src': {
-      'url': Var('chromium_git') + '/external/github.com/material-components/material-components-ios.git' + '@' + '4723f0fded1cb6607de576836f89a291cfb9799d',
+      'url': Var('chromium_git') + '/external/github.com/material-components/material-components-ios.git' + '@' + '686cc976347618f75c9de58d4c1c220eaa8b4976',
       'condition': 'checkout_ios',
   },
 

ios/third_party/material_components_ios/README.chromium

 Name: Material Components for iOS
 URL: https://github.com/material-components/material-components-ios
 Version: 0
-Revision: 4723f0fded1cb6607de576836f89a291cfb9799d
+Revision: 686cc976347618f75c9de58d4c1c220eaa8b4976
 License: Apache 2.0
 License File: LICENSE
 Security Critical: yes