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The full restore calls BrowserAppLauncher::LaunchAppWithParams to
restore the system web apps:
https://source.chromium.org/chromium/chromium/src/+/master:chrome/browser/chromeos/full_restore/app_launch_handler.cc;l=210

So modify BrowserAppLauncher::LaunchAppWithParams to save the launch
parameters to prepare the full restore for the next reboot.

Modify ExtensionAppsChromeOs to save the launch parameters for platform
apps only. Modify WebAppsChromeOs to save the launch parameters for the
system web apps only. Because if the apps opened in tab or with browser,
the full restore component can get the info from the window property
kWindowIdKey, and Chrome session restore can restore browsers, so we
don't need to save the launch parameter.

BUG=1146900

Change-Id: I1231bcbc1d665918f5f6d7efbf19751387bf8ebb
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2639346Reviewed-by: Dominick Ng <dominickn@chromium.org>
Commit-Queue: Nancy Wang <nancylingwang@chromium.org>
Cr-Commit-Position: refs/heads/master@{#845536}