Bug 914437 - Don't composite windows that are not open. r=mattwoodrow
Bug 923114 - Clear the current GL context when we're about to destroy it. r=mattwoodrow
Bug 923133 - Remove unneeded main thread GL context management in -[ChildView lockFocus]. r=mattwoodrow
Bug 886999 - Only call setView and update on the GL context when necessary. r=mattwoodrow
Bug 914437 - Also refuse to render when our view is not attached to a window. r=mattwoodrow
Bug 886999 - Lock the GL context before compositing on the compositor thread or before calling setView or update on the main thread. r=mattwoodrow
Bug 886999 - Wait until composition has finished before tearing down our NSView. r=mattwoodrow
Bug 890997 - Enable OMTC on 10.6. r=bgirard