Cheaper thread-safe atomic initialization of static references.
Introduce AtomicallyInitializedStaticReference(Type, name, initializer)
for creating static singletons in a thread-safe manner. Reduce overhead
compared to the previous AtomicallyInitializedStatic() by adding a
double-checked locking scheme around the initialization.
Adopt its use across Blink.
R=jochen,kinuko,haraken,jyasskin
BUG=447370
Review URL: https://codereview.chromium.org/794223003
git-svn-id: svn://svn.chromium.org/blink/trunk@188774 bbb929c8-8fbe-4397-9dbb-9b2b20218538
41 files changed
