Landing for pliard@chromium.org: Remove static initializers in v8.

src/platform-linux.cc

Index: src/platform-linux.cc
===================================================================
--- src/platform-linux.cc	(revision 11005)
+++ src/platform-linux.cc	(working copy)
@@ -1090,7 +1090,7 @@
   }
 
   static void AddActiveSampler(Sampler* sampler) {
-    ScopedLock lock(mutex_);
+    ScopedLock lock(mutex_.Pointer());
     SamplerRegistry::AddActiveSampler(sampler);
     if (instance_ == NULL) {
       // Start a thread that will send SIGPROF signal to VM threads,
@@ -1103,7 +1103,7 @@
   }
 
   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_);
@@ -1206,7 +1206,7 @@
   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_;
@@ -1216,7 +1216,7 @@
 };
 
 
-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;