Crash on Promise creation from a worker thread

[SergeyZhukovsky]

I found that on GPC on the latest nightly 1.62.90. It's related to the attempt of fixing that issue #34135
We should call it from UI thread only in a case when there is a connection failure in a mojo channel.

Exception java.lang.RuntimeException: Can't create handler inside thread Thread[Timer-2,5,main] that has not called Looper.prepare()
  at android.os.Handler.<init> (Handler.java:227)
  at android.os.Handler.<init> (Handler.java:129)
  at org.chromium.base.Promise.<init> (Promise.java:43)
  at org.chromium.chrome.browser.misc_metrics.MiscAndroidMetricsFactory.getMetricsService (MiscAndroidMetricsFactory.java:45)
  at org.chromium.chrome.browser.app.BraveActivity.initMiscAndroidMetrics (BraveActivity.java:2042)
  at org.chromium.chrome.browser.misc_metrics.MiscAndroidMetricsConnectionErrorHandler.onConnectionError (MiscAndroidMetricsConnectionErrorHandler.java:34)
  at org.chromium.mojo.bindings.Interface$AbstractProxy$HandlerImpl.onConnectionError (Interface.java:161)
  at org.chromium.mojo.bindings.Interface$AbstractProxy.onConnectionError (Interface.java:263)
  at org.chromium.mojo.bindings.DelegatingConnectionErrorHandler.onConnectionError (DelegatingConnectionErrorHandler.java:32)
  at org.chromium.mojo.bindings.Connector.onError (Connector.java:162)
  at org.chromium.mojo.bindings.Connector.accept (Connector.java:101)
  at org.chromium.mojo.bindings.RouterImpl.accept (RouterImpl.java:160)
  at org.chromium.mojo.bindings.AutoCloseableRouter.accept (AutoCloseableRouter.java:69)
  at org.chromium.misc_metrics.mojom.MiscAndroidMetrics_Internal$Proxy.recordBrowserUsageDuration (MiscAndroidMetrics_Internal.java:114)
  at org.chromium.chrome.browser.util.UsageMonitor$1.run (UsageMonitor.java:35)
  at java.util.TimerThread.mainLoop (Timer.java:563)
  at java.util.TimerThread.run (Timer.java:513)