Bug 1018387 - Log the composition bounds in layer dumps. r=Cwiiis
Bug 1018387 - Add some logging for the tile drawing code. r=Cwiiis
Bug 1018387 - Update various variables and comments to reflect the fact that the values are in layer pixels and not layout device pixels. r=Cwiiis
Bug 1018387 - Fix some calculations that were wrong because of confusion between LayoutDevice and Layer pixel spaces. r=botond
Bug 1022398 - Remove declaration for method that was removed a long time ago. r=nical