There is no dialog latency data since yesterday, it is caused by crrev.com/1907073002, the action t…

chrome/test/media_router/telemetry/benchmarks/pagesets/media_router_perf_pages.py

Index: chrome/test/media_router/telemetry/benchmarks/pagesets/media_router_perf_pages.py
diff --git a/chrome/test/media_router/telemetry/benchmarks/pagesets/media_router_perf_pages.py b/chrome/test/media_router/telemetry/benchmarks/pagesets/media_router_perf_pages.py
index ec155e9ff70d5862485f3ed9c5b806a87553f6c2..95a550f5cc2f3808a43be12e69ea5caed622efc7 100644
--- a/chrome/test/media_router/telemetry/benchmarks/pagesets/media_router_perf_pages.py
+++ b/chrome/test/media_router/telemetry/benchmarks/pagesets/media_router_perf_pages.py
@@ -33,7 +33,16 @@ class CastDialogPage(media_router_page.CastPage):
         shared_page_state_class=shared_page_state_class)
 
   def RunPageInteractions(self, action_runner):
-     pass
+    # Wait for 5s after Chrome is opened in order to get consistent results.
+    action_runner.Wait(5)
+    with action_runner.CreateInteraction('OpenDialog'):
+      # Open dialog
+      action_runner.TapElement(selector='#start_session_button')
+      action_runner.Wait(5)
+      # Close media router dialog
+      for tab in action_runner.tab.browser.tabs:
+        if tab.url == 'chrome://media-router/':
+          self.CloseDialog(tab)
 
 
 class CastIdlePage(CastDialogPage):