https://bugs.webkit.org/show_bug.cgi?id=121564

Reviewed by Andreas Kling.

Source/JavaScriptCore:

* runtime/VM.cpp:
(JSC::VM::addSourceProviderCache):

Source/WebCore:

* bridge/IdentifierRep.cpp:
(WebCore::IdentifierRep::get):
* page/PageGroup.cpp:
(WebCore::PageGroup::transientLocalStorage):

Source/WebKit/mac:

* Plugins/Hosted/ProxyInstance.mm:
(WebKit::ProxyInstance::methodNamed):
(WebKit::ProxyInstance::fieldNamed):

Source/WebKit2:

* UIProcess/Storage/StorageManager.cpp:
(WebKit::StorageManager::LocalStorageNamespace::getOrCreateStorageArea):
(WebKit::StorageManager::SessionStorageNamespace::getOrCreateStorageArea):
* WebProcess/Storage/StorageNamespaceImpl.cpp:
(WebKit::StorageNamespaceImpl::storageArea):

Source/WTF:

Add the same rvalue references and std::forward calls that already exist in HashMap.

* wtf/RefPtrHashMap.h:

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@156056 268f45cc-cd09-0410-ab3c-d52691b4dbfc