Shadow matches the transient taskbar shadow (implementation inspired by
TaskbarBackgroundRenderer).
Bug:399862815
Flag: EXEMPT (UX) bugfix
Test: On desktop device, open taskbar overflow in overview, and verify a
shadow is shown (making outline of KQS view visible against
overview background)
Change-Id: I9527d8448439e87789c9e036edb464590349c3dd
1. BlurFallbackStyle/BlurStyle will now be applied in Launcher startup.
When "updateBlurStyle" is called, individual element style's swap
happens as per blur style.
2. "hasOpaqueBg" background will now be checked in "applyDepthAndBlur"
for setting the "currentBlur" value.
Bug: 409758306
Test: Manual. go to overview, enable/disable battery saver mode.
Flag: com.android.launcher3.enable_overview_background_wallpaper_blur
Change-Id: Ic9030c2b267867b9124705426dd51deb1b30ca55
Adding KeyboardQuickSwitchView and associated flows.
Test: Manually tested alt-tab and alt-shift-tab in and out of overview on a tablet and phone
Bug: 258854035
Change-Id: Ifb48b005067b3a9c66acfd5ecdbae144b359d3be