chrome: Remove 14 exit time destructors and 2 static initializers.

chrome/browser/policy/device_management_backend_impl.cc

Index: chrome/browser/policy/device_management_backend_impl.cc
diff --git a/chrome/browser/policy/device_management_backend_impl.cc b/chrome/browser/policy/device_management_backend_impl.cc
index a71f6ed015d27e4bfad66e3d741f98ba54e32504..5143b21c8cecaf51d30217b743d32121eb3ab7ee 100644
--- a/chrome/browser/policy/device_management_backend_impl.cc
+++ b/chrome/browser/policy/device_management_backend_impl.cc
@@ -473,7 +473,7 @@ DeviceManagementBackendImpl::~DeviceManagementBackendImpl() {
 }
 
 std::string DeviceManagementBackendImpl::GetAgentString() {
-  static std::string agent;
+  CR_DEFINE_STATIC_LOCAL(std::string, agent, ());
   if (!agent.empty())
     return agent;
 
@@ -486,7 +486,7 @@ std::string DeviceManagementBackendImpl::GetAgentString() {
 }
 
 std::string DeviceManagementBackendImpl::GetPlatformString() {
-  static std::string platform;
+  CR_DEFINE_STATIC_LOCAL(std::string, platform, ());
   if (!platform.empty())
     return platform;