Allow linker initialization of lazy instance
Using the initializer list construct = {0} allows the object to be linker initialized.
Modify the LazyInstance class design to make it a pod aggregate type that can be linker initialized this way. Also combines the instance and state members, in line with the Singleton<> class design.
Introduces a new LAZY_INSTANCE_INITIALIZER macro specifically for using to init all lazy instances + modify all existing callsites to use it. (Old code would no longer compile)
BUG=94925
TEST=existing tests pass. http://build.chromium.org/f/chromium/perf/linux-release/sizes/report.html?history=150&header=chrome-si&graph=chrome-si&rev=-1 should step downward.
TBR=jam@chromium.org,rvargas@chromium.org,darin@chromium.org,ben@chromium.org,apatrick@chromium.org,akalin@chromium.org
Review URL: http://codereview.chromium.org/8491043
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@110076 0039d316-1c4b-4281-b951-d872f2087c98
CrOS-Libchrome-Original-Commit: 6de0fd1d935e8c6c9257f1082dbd227acb1a06b1
diff --git a/base/tracked_objects.cc b/base/tracked_objects.cc
index 6534159..737c2b3 100644
--- a/base/tracked_objects.cc
+++ b/base/tracked_objects.cc
@@ -167,7 +167,7 @@
// static
base::LazyInstance<base::Lock,
base::LeakyLazyInstanceTraits<base::Lock> >
- ThreadData::list_lock_(base::LINKER_INITIALIZED);
+ ThreadData::list_lock_ = LAZY_INSTANCE_INITIALIZER;
// static
ThreadData::Status ThreadData::status_ = ThreadData::UNINITIALIZED;