Backed out changesets 34a66a625618, 32db3daa20fe, and ac15ba8568c5 (bug 1102219) for Gaia unit test failures.

--HG--
extra : rebase_source : 0266cc0b2a6568ca653885745f381df8d6d167ec
Bug 1104623 - Inherit security flags if channel already has a loadinfo attached in NS_NewChannel (r=bz,sworkman)
Bug 1104623 - Inherit security flags if channel already has a loadinfo attached in NS_NewChannel - tests (r=ckerschb)
Bug 1013432 - Follow-up to fix build bustage when debug logging is enabled. r=me and DONTBUILD
Bug 1108825: Implement SIMD.int32x4.mul in Odin; r=sunfish
Bug 1107145 - Allow typed objects with the same prototype to have different descriptors, r=nmatsakis.
Backed out changeset c2659bf5793d (bug 1107145) for bustage.
DONTBUILD CLOSED TREE
Bug 1084177 - Maintain only one zlib compression context per helper thread. r=njn

--HG--
extra : rebase_source : 3c4caab7e3c305418ea35292002597aae1dacb49
Bug 1109888.  ICGetPropCallDOMProxyNativeStub should inherit from ICGetPropCallGetter so we have our holder/holdershape/etc accessible the same way across all the JSNative getter stubs. r=efaust
Bug 990484 part 1.  Add an overload of JS_IsIdentifier that takes chars+length.  r=jorendorff
Bug 990484 part 2.  Remove a bunch of now-unnecessary JSContext bits in indexedDB code.  r=baku
Bug 1105615.  Make IDBObjectStoreParameters.keyPath a union instead of using "any" for it.  r=baku
Backout bug 1099410 for increasing crash rate
Backed out changesets c63a0dc3e90f and 5b53df2993fa (bug 1104623) for leaks.

--HG--
extra : rebase_source : cb4ed2e9e43d8d937f75561534f26081e694c964
Bug 1097267 - Remove the DONT_ENUM_STATIC_PROPS flag from XPC. r=bholley
Bug 1097267 - Change to the simpler enumerate hook in the js engine. r=jorendorff
Bug 1097267 - Use new enumerate hook for plugins. r=josh
Bug 1097267 - Change the enumerate hook usage in XPC and browser. r=bholley
Bug 825199 - Allow us the define self-hosted properties after everything is set-up properly. r=till
Bug 825199 - Self host __defineGetter__ and friends. r=till