Vim control lines were re-introduced or not entirely cleaned up.
This nukes them again.
Removing from embedding, extensions, gfx, hal, ipc, layout, mailnews,
media and memory. More to come.
Suspected "use after free" in nsMsgLineStreamBuffer::ReadNextLine() leading to crash since object may be destroyed while still in use on another thread.
Tag #1273
Also factors out some common code into nsMSgDBFolder::Delete(), and makes a couple of incidental changes to try and clarify the responsibilies of nsIMsgPluggableStore::DeleteFolder().
Tag #1273
* Part 1: make conversion CTORs explicit.
Minor tweaks to conform with new(ish) static analysis rule which flags up implicit single-argument conversion constructors.
* Part 2: fix a couple of double-mRefCnt declaration errors.
* Part 3: Fix unsafe use of NS_ConvertASCIItoUTF16().
Tag #1273
