Bug 1055934 - Backout Bug 1028532. r=milan, a=bajaj
Bug 1046026 - Part 1: Deprecate the Optional Property |isDiskFull| in MobileMessageDB. r=vyang, a=bajaj
Bug 1046026 - Part 2: Check failure cause according to |event.target.error.name|. r=vyang, a=bajaj
Bug 1046026 - Part 3: Remove the redundant function name from the implementation of EventHandler. r=vyang, a=bajaj
Bug 1046026 - Part 4: Update threads at once after all messages are deleted. r=vyang, a=bajaj
Bug 1046026 - Part 5: Re-write test cases with 'disk-space-watcher' notification. r=vyang
Bug 1062361 - Free cached tiles on memory-pressure. r=nical, a=bajaj
Bug 1061943 - Purge all GradientCache on memory-pressure. r=jrmuizel, a=bajaj