Roll src/chrome/browser/resources/media_router/extension/src/ 270eb6c46..50d927e72 (4 commits)

https://chromium.googlesource.com/media_router.git/+log/270eb6c464d5..50d927e72030

$ git log 270eb6c46..50d927e72 --date=short --no-merges --format='%ad %ae %s'
2018-03-15 mfoltz Remove last references to chrome.dial from externs and manifests. Code calling chrome.dial has already been removed. The entire API it will be removed from Chrome in M67.
2018-03-06 mfoltz Added unit tests for Slarti support.
2018-02-28 mfoltz [Cast Provider] Disable sink query if it is enabled on the browser side.
2018-02-27 mfoltz [Media Router] Include media sink service status in feedback report

Created with:
  roll-dep src/chrome/browser/resources/media_router/extension/src

TBR=amp@chromium.org

Change-Id: I13f0ba07080d21f4e0e8bf331abac08ba06baabe
Reviewed-on: https://chromium-review.googlesource.com/966992Reviewed-by: mark a. foltz <mfoltz@chromium.org>
Reviewed-by: Adam Parker <amp@chromium.org>
Commit-Queue: mark a. foltz <mfoltz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#544141}

DEPS

@@ -171,7 +171,7 @@ allowed_hosts = [
 
 deps = {
   'src/chrome/browser/resources/media_router/extension/src':
-    Var('chromium_git') + '/media_router.git' + '@' + '270eb6c464d5845321fab65c32ac04ded5ae43fc',
+    Var('chromium_git') + '/media_router.git' + '@' + '50d927e720309777a39fdf1ca89fd096bb51e103',
 
   'src/buildtools':
     Var('chromium_git') + '/chromium/buildtools.git' + '@' +  Var('buildtools_revision'),