1. Changed Preload Icon UI to be grayscale while the app is not startable.
2. Added progress bar for when app is installed but still ownloading.
3. Updated Preload Icon progress and click handling to use new incremental api.
Progress bar color updates will follow in a separate CL.
Demo: https://drive.google.com/file/d/1H1EvtTorLeJwC1eiq10tm-TT81YZ6osk/view?usp=sharing
Bug: 171008815
Test: manual
Change-Id: I5874a5146d79a8c91d7d90ff0b9c1c427a3c95dd
Updating various static objects to use a standard pattern so that
it is easier to track and cleanup those objects
Bug: 141376165
Change-Id: Ia539cbfa338d544dddad771c5027b6748762768b
Schneider Victor-tulias
Sunny Goyal