Bug 990372 - [Sora][Message]The virtual keyboard disable after do some
operations.
 - not to do clearTouchedKeys() in resetKeyboard().
Bug 937442 - (lockscreen-window) [Window Management] Implement LockscreenWindow to manage LockScreen.
Bug 990630: extract the EXIF preview metadata that media frame needs

don't parse EXIF again when creating thumbnail

Diego's README changes

update tests
Merge pull request #17930 from davidflanagan/bug990630

Bug 990630: extract the EXIF preview metadata that media frame needs r=jdarcangelo
Merge pull request #17867 from RudyLu/keyboard/Bug990372

Bug 990372 - [Sora][Message]The virtual keyboard disable after do some
r=janjongboom
Merge pull request #17862 from snowmantw/issue937442-lockscreen-window

Bug 937442 - (lockscreen-window) [Window Management] Implement LockscreenWindow to manage LockScreen.