32bitsBacked out changeset ec2921feb3b5 (bug 1304207) for broken OSX builds
Bug 1293949 - nsFileInputStream must do the pending open step before been serialized,
Bug 1301593 - Block versions of the Galaxy Note 4 from using the dynamic toolbar as well.
Bug 1279612 - Block xpcom-will-shutdown before GMPServiceParent instances are shut down.
Bug 1304207 - Add telemetry to track when EME CDMs are instantiated.
Bug 1303940 - MessageLoop:ostDelayedTask() should schedule the runnable on the target thread instead of the current thread.
Bug 1302980 - Don't reset IME context on preedit_end.
Bug 1267820 - Fix HTTP cache2 leak after shutdown, don't setup purging timer after shutdown.
Bug 1289581 - Assert that no object slot gets set with a black to gray edge with the followup folded in;
Bug 1283634 - Assert that no gray objects get passed into JSAPI;
Bug 1303418 - Don't allow upgrades that change the addon ID.
Bug 1300805 - Remove media.webvtt.enabled pref.
Bug 1298323 - do not destroy the Finder instance when only a single window closes in e10s mode, because that render the findbar useless.
Bug 1305135 - Enable async drawing support on release channels
No bug, Automated blocklist update from host bld-linux64-spot-577
Bug 1304027 - Uplift recent changes to urlbar behavior and performance.
Bug 1300083 - Initialize Plugin Tags correctly.
Bug 1304052 - Use the unprefixed fullscreenchange event, and register the listener in the system group
Bug 1304052 - Disable APZ zooming when the document has any fullscreen state.
