* Update versions for Release 6.10.0
* Cherrypick #3983 and include Database in release. (#3986)
* Remove log argument that causes SocketRocket crash (#3983)
* Add FirebaseDatabase to release.
* Update CHANGELOG with version.
* Cherrypick for #3984 along with CHANGELOG update. (#3988)
* Fix race condition in FIRComponentContainer instance creation (#3984)
* Fix race condition in FIRComponentContainer instance creation
Reported in #3967. Users sometimes seeing a crash when multiple threads
concurrently try to create Firestore instances. By inspection I found
that there's a race here where two threads can check for presence in the
cache, see nothing, proceed to creation, both store a value in the cache,
and both return their copies. This would lead to two Firestores being
created for a single App.
This replaces `dispatch_sync` on a serial queue with good old
`@synchronized` blocks. `dispatch_sync` will self-deadlock if called
from a thread already on the queue while `@synchronized` allows
recursion.
No new tests are added because several tests like
`testDependencyDoesntBlock` already cover this case.
* format
* Update Core CHANGELOG
* Update Core CHANGELOG again
* Fix merge from CHANGELOG
* Update versions for Release 6.9.0
* Fix unbalanced background task creation in GDTCCTUploader (#3838) (#3839)
* Add Manifest
* dependency version update
* Cherry picks for 6.9.0 (#3871)
* fixed "expiclitlySet" typo. (#3853)
* Mark unused variables (#3854)
* Mute FCM deprecated warnings with Xcode 11 and min iOS >= 10 (#3857)
* Add a third slash to make sure generated docs include these comments.b/13812238 (#3846)
* Add RC test app.
* Add private header files to podspec used by 2P.
* Rename FIRRemoteConfig_Internal.h to FIRRemoteConfig_Private.h.
* Fix style.
* Add copyright notice.
* Fix relative path to RCNConfigSettings for tests.
* Fix style.
* Rename to FIRRemoteConfig_Private.h for unit tests.
* Rename to coorect relative path.
dmandar