Roll src/chrome/browser/resources/media_router/extension/src/ 475baa8b2..29324b698 (4 commits)

https://chromium.googlesource.com/media_router.git/+log/475baa8b2eb0..29324b698ccd

$ git log 475baa8b2..29324b698 --date=short --no-merges --format='%ad %ae %s'
2018-10-05 mfoltz Fix/suppress JSCompiler errors in advance of b/117162687 && b/117162806
2018-09-18 mfoltz Added retry behavior for Slarti calls.
2018-09-06 mfoltz Support mirroring with Mirroring Service behind feature flag.
2018-08-08 mfoltz Added extra logging for GCM activity.

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

TBR=jrw@chromium.org

Change-Id: I1d88f7f4a6c427183d89de0a79d6636b07a73ec0
Reviewed-on: https://chromium-review.googlesource.com/c/1315695
Commit-Queue: mark a. foltz <mfoltz@chromium.org>
Reviewed-by: mark a. foltz <mfoltz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#605054}

DEPS

@@ -261,7 +261,7 @@ allowed_hosts = [
 
 deps = {
   'src/chrome/browser/resources/media_router/extension/src':
-    Var('chromium_git') + '/media_router.git' + '@' + '475baa8b2eb0a7a9dd1c96c9c7a6a8d9035cc8d7',
+    Var('chromium_git') + '/media_router.git' + '@' + '29324b698ccd8920bc81c71d42dadc6310f0ad0f',
 
   'src/android_webview/tools/cts_archive': {
       'packages': [