cross-site, isolated, with immediate nav initiation:

Initial page nav:
11-21 12:37:40.311 22457 22457 E cr_AODEBUG-TabStateBrowserControlsVisibilityDelegate: onPageLoadStarted called, removing fullscreen delay msg
11-21 12:37:40.311 22457 22457 E cr_AODEBUG-TabStateBrowserControlsVisibilityDelegate: updateWaitingForLoad called, new value: true
11-21 12:37:40.311 22457 22457 E cr_AODEBUG-TabStateBrowserControlsVisibilityDelegate: enableHidingBrowserControls called
11-21 12:37:40.311 22457 22457 E cr_AODEBUG-TabStateBrowserControlsVisibilityDelegate: enableHidingBrowserControls, prelim return value before fsWaitingForLoad: true
11-21 12:37:40.312 22457 22457 E cr_AODEBUG-TabStateBrowserControlsVisibilityDelegate: enableHidingBrowserControls, prelim return value after fsWaitingForLoad: false
11-21 12:37:40.312 22457 22457 E cr_AODEBUG-TabStateBrowserControlsVisibilityDelegate: enableHidingBrowserControls, returning this value: false

11-21 12:37:40.449 22457 22457 E cr_AODEBUG-TabStateBrowserControlsVisibilityDelegate: enableHidingBrowserControls called
11-21 12:37:40.449 22457 22457 E cr_AODEBUG-TabStateBrowserControlsVisibilityDelegate: enableHidingBrowserControls, prelim return value before fsWaitingForLoad: true
11-21 12:37:40.449 22457 22457 E cr_AODEBUG-TabStateBrowserControlsVisibilityDelegate: enableHidingBrowserControls, prelim return value after fsWaitingForLoad: false
11-21 12:37:40.449 22457 22457 E cr_AODEBUG-TabStateBrowserControlsVisibilityDelegate: enableHidingBrowserControls, returning this value: false
11-21 12:37:40.468 22457 22457 E cr_AODEBUG-TabStateBrowserControlsVisibilityDelegate: onDidFinishNavigationInPrimaryMainFrame called, (re)starting new fullscreen delay
11-21 12:37:40.469 22457 22457 E cr_AODEBUG-TabStateBrowserControlsVisibilityDelegate: onContentChanged for tab ID 41
11-21 12:37:40.510 22457 22457 E cr_AODEBUG-TabStateBrowserControlsVisibilityDelegate: onPageLoadStarted called, removing fullscreen delay msg
11-21 12:37:40.520 22457 22457 E cr_AODEBUG-TabStateBrowserControlsVisibilityDelegate: onPageLoadFinished called for GURL(https://alesandroortiz.com/security/chromium/android-hide-address-bar-minimal.html), calling scheduleEnableFullscreenLoadDelayIfNecessary
11-21 12:37:40.520 22457 22457 E cr_AODEBUG-TabStateBrowserControlsVisibilityDelegate: scheduleEnableFullscreenLoadDelayIfNecessary called
11-21 12:37:40.520 22457 22457 E cr_AODEBUG-TabStateBrowserControlsVisibilityDelegate: scheduleEnableFullscreenLoadDelayIfNecessary, calling sendEmptyMessageDelay with ENABLE_FULLSCREEN_AFTER_LOAD

When delayed nav completes:
11-21 12:37:43.522 22457 22457 E cr_AODEBUG-TabStateBrowserControlsVisibilityDelegate: handleMessage called with ENABLE_FULLSCREEN_AFTER_LOAD. Is fullscreen currently waiting for load? true
11-21 12:37:43.522 22457 22457 E cr_AODEBUG-TabStateBrowserControlsVisibilityDelegate: handleMessage called with ENABLE_FULLSCREEN_AFTER_LOAD. About to call updateWaitingForLoad(false)
11-21 12:37:43.522 22457 22457 E cr_AODEBUG-TabStateBrowserControlsVisibilityDelegate: updateWaitingForLoad called, new value: false
11-21 12:37:43.522 22457 22457 E cr_AODEBUG-TabStateBrowserControlsVisibilityDelegate: enableHidingBrowserControls called
11-21 12:37:43.523 22457 22457 E cr_AODEBUG-TabStateBrowserControlsVisibilityDelegate: enableHidingBrowserControls, prelim return value before fsWaitingForLoad: true
11-21 12:37:43.523 22457 22457 E cr_AODEBUG-TabStateBrowserControlsVisibilityDelegate: enableHidingBrowserControls, prelim return value after fsWaitingForLoad: true
11-21 12:37:43.523 22457 22457 E cr_AODEBUG-TabStateBrowserControlsVisibilityDelegate: enableHidingBrowserControls, returning this value: true

11-21 12:37:43.754 22457 22457 E cr_AODEBUG-TabStateBrowserControlsVisibilityDelegate: enableHidingBrowserControls called
11-21 12:37:43.754 22457 22457 E cr_AODEBUG-TabStateBrowserControlsVisibilityDelegate: enableHidingBrowserControls, prelim return value before fsWaitingForLoad: true
11-21 12:37:43.754 22457 22457 E cr_AODEBUG-TabStateBrowserControlsVisibilityDelegate: enableHidingBrowserControls, prelim return value after fsWaitingForLoad: true
11-21 12:37:43.754 22457 22457 E cr_AODEBUG-TabStateBrowserControlsVisibilityDelegate: enableHidingBrowserControls, returning this value: true
11-21 12:37:43.771 22457 22457 E cr_AODEBUG-TabStateBrowserControlsVisibilityDelegate: onDidFinishNavigationInPrimaryMainFrame called, (re)starting new fullscreen delay
11-21 12:37:43.796 22457 22457 E cr_AODEBUG-TabStateBrowserControlsVisibilityDelegate: onPageLoadFinished called for GURL(https://aogarantiza.com/chromium/slow.php?s=3&ts=1732210660473), calling scheduleEnableFullscreenLoadDelayIfNecessary
11-21 12:37:43.796 22457 22457 E cr_AODEBUG-TabStateBrowserControlsVisibilityDelegate: scheduleEnableFullscreenLoadDelayIfNecessary called