Have separate DeviceProfile instances for taskbar and all apps windows.

We want to scale down the DeviceProfile for taskbar, but the all apps
window should rely on the original DeviceProfile.

Test: Manual
Fix: 232907361
Change-Id: Ia09f674ada9e445c1d7278fa94c536ea9de13ef9
Merged-In: Ia09f674ada9e445c1d7278fa94c536ea9de13ef9
(cherry picked from commit a9a78117c7)

quickstep/src/com/android/launcher3/taskbar/NavbarButtonsViewController.java

@@ -522,7 +522,7 @@ public class NavbarButtonsViewController implements TaskbarControllers.LoggableT
             if (button.getVisibility() == View.VISIBLE) {
                 parent.getDescendantRectRelativeToSelf(button, mTempRect);
                 if (mHitboxExtender.extendedHitboxEnabled()) {
-                    mTempRect.bottom += mContext.mDeviceProfile.getTaskbarOffsetY();
+                    mTempRect.bottom += mContext.getDeviceProfile().getTaskbarOffsetY();
                 }
                 outRegion.op(mTempRect, Op.UNION);
             }