Binding problems with OomInterventionHost, seems to have started after OomIntervention field trial was started.

03-07 11:11:46.527  4854  4854 F chromium: [FATAL:binding_state.cc(90)] Check failed: !is_bound(). Attempting to bind interface that is already bound: blink::mojom::OomInterventionHost

https://luci-logdog.appspot.com/v/?s=chromium%2Fandroid%2Fswarming%2Flogcats%2F3c18ee206c7f4c11%2F%2B%2Flogcat_logcat_org.chromium.chrome.browser.hardware_acceleration.ToastHWATest.testOpenedInBackgroundToast_20180307T111141-UTC_02467bc45974138f

See also flakiness dashboard
https://test-results.appspot.com/dashboards/flakiness_dashboard.html#tests=org.chromium.chrome.browser.hardware_acceleration.ToastHWATest%23testOpenedInBackgroundToast&testType=chrome_public_test_apk