Stop including SecurityOrigin.h where unnecessary

Stop including SecurityOrigin.h where unnecessary
https://bugs.webkit.org/show_bug.cgi?id=115897

Reviewed by Antti Koivisto.

Move rarely called functions out of line so headers don't have to include SecurityOrigin.h

* Modules/indexeddb/IDBFactoryBackendImpl.h:
* Modules/webdatabase/DatabaseBackendBase.cpp:
(WebCore::DatabaseBackendBase::databaseDebugName):
* Modules/webdatabase/DatabaseBackendBase.h:
(DatabaseBackendBase):
* Modules/webdatabase/DatabaseSync.h:
* bindings/js/JSDOMWindowCustom.h:
* html/parser/XSSAuditor.cpp:
* loader/ThreadableLoader.cpp:
(WebCore::ThreadableLoaderOptions::ThreadableLoaderOptions):
(WebCore::ThreadableLoaderOptions::~ThreadableLoaderOptions):
(WebCore::ThreadableLoader::create):
* loader/ThreadableLoader.h:
(ThreadableLoaderOptions):
* loader/WorkerThreadableLoader.cpp:
* workers/DedicatedWorkerContext.cpp:
* workers/DedicatedWorkerThread.cpp:
* workers/SharedWorkerContext.cpp:
* workers/WorkerThread.cpp:
* workers/WorkerThread.h:

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@149864 268f45cc-cd09-0410-ab3c-d52691b4dbfc