We want something similar to "Startup.Android.Experimental.Cold.*" for PWA starts.
We should record a separate histogram for same set of circumstances but just for WebApkActivity cause it's a small fraction of chrome launches.
Additionally, we can also measure the full user-perceived time from home icon click by add a new intent extra for when the webapk launches its host browser. This should be omitted if we show any browser-selection UI as we don't want to get skew from time the user was looking at the browser selector UI.
Comment 1 by bugdroid1@chromium.org
, May 17 2018