Remove static initializers in v8.

src/platform-freebsd.cc

Index: src/platform-freebsd.cc
diff --git a/src/platform-freebsd.cc b/src/platform-freebsd.cc
index a5981b19c3c11333247b103ec78a6376e30940b7..a544e8b52909e987fbc994e67dd5b43c7eaa3184 100644
--- a/src/platform-freebsd.cc
+++ b/src/platform-freebsd.cc
@@ -717,7 +717,7 @@ class SignalSender : public Thread {
         interval_(interval) {}
 
   static void AddActiveSampler(Sampler* sampler) {
-    ScopedLock lock(mutex_);
+    ScopedLock lock(mutex_.Pointer());
     SamplerRegistry::AddActiveSampler(sampler);
     if (instance_ == NULL) {
       // Install a signal handler.
@@ -737,7 +737,7 @@ class SignalSender : public Thread {
   }
 
   static void RemoveActiveSampler(Sampler* sampler) {
-    ScopedLock lock(mutex_);
+    ScopedLock lock(mutex_.Pointer());
     SamplerRegistry::RemoveActiveSampler(sampler);
     if (SamplerRegistry::GetState() == SamplerRegistry::HAS_NO_SAMPLERS) {
       RuntimeProfiler::StopRuntimeProfilerThreadBeforeShutdown(instance_);
@@ -830,7 +830,7 @@ class SignalSender : public Thread {
   RuntimeProfilerRateLimiter rate_limiter_;
 
   // Protects the process wide state below.
-  static Mutex* mutex_;
+  static LazyMutex mutex_;
   static SignalSender* instance_;
   static bool signal_handler_installed_;
   static struct sigaction old_signal_handler_;
@@ -839,7 +839,7 @@ class SignalSender : public Thread {
   DISALLOW_COPY_AND_ASSIGN(SignalSender);
 };
 
-Mutex* SignalSender::mutex_ = OS::CreateMutex();
+LazyMutex SignalSender::mutex_ = LAZY_MUTEX_INITIALIZER;
 SignalSender* SignalSender::instance_ = NULL;
 struct sigaction SignalSender::old_signal_handler_;
 bool SignalSender::signal_handler_installed_ = false;