Remove DEFAULT_THEME_APPLIED_ON_FIRST_BOOT

doApplyDefaultTheme should be able to apply the default theme, if
one exists, whenever applyDefaultTheme() is called.

Change-Id: Ia50b4089d122855a4ddde91a02eef33ed3f9eaf4
(cherry picked from commit 7f563260da4bc7664d5a8ee283421404bb5bed6f)
Add status bar and navigation bar to ThemesContract

Change-Id: I8048c735d7bbbfdb86ee5923b95bece6b4252bf7
(cherry picked from commit 45a8399dfda9c682affb24ebaedb7849eb531ea4)
Merge "Install themes and icon packs for secondary users." into cm-11.0
(cherry picked from commit 2c337f37c31f5b8c3e112327a739e9fd9efe9550)
Add previews to the themes contract.

Change-Id: I607a6eda1c63a701516d2bc78ca6b705841fbdf7
(cherry picked from commit cef811df16af7f23872f2bc24294b9d3886b0258)
Fix missing nav bar on tablets in landscape mode

(cherry picked from commit 4a0dc1b459ce2a105209d931f1c879981df81e03)