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/sys_info_chromeos.cc b/base/sys_info_chromeos.cc
index 1ada002..f1c6664 100644
--- a/base/sys_info_chromeos.cc
+++ b/base/sys_info_chromeos.cc
@@ -40,7 +40,7 @@
};
static base::LazyInstance<ChromeOSVersionNumbers>
- g_chrome_os_version_numbers(base::LINKER_INITIALIZED);
+ g_chrome_os_version_numbers = LAZY_INSTANCE_INITIALIZER;
// static
void SysInfo::OperatingSystemVersionNumbers(int32* major_version,