Fix to NullPointerException when activity is relaunched

When ChooseTypeAndAccountActivity is relaunched and resumed
by ActivityManager a call is made to onActivityResult without
first triggering onResume. This leads to mAccounts object
still being null.

Fixed by properly setting mAccounts object if it is null prior
to use after function onCreate has been called.

Change-Id: Ife7e1e052c473970d923fa43ee6189eb62a1113b
Fix for NullPointerException in HTML5VideoViewProxy

There is a missing null check of mHTML5VideoView.

Change-Id: Ic49ad02703717c3b76da4371e80abfdebff90873
GC triggering performance optimizations

Credits to team CM.

Change-Id: Id491a095f2faaf1e05fb44525063254bcff0a2bc
Fix aliasing violations