Remove static initializers in v8.

src/platform.h

Index: src/platform.h
diff --git a/src/platform.h b/src/platform.h
index 38e633a38081e155744d9e1942c9eee8fc73827f..50c62eb91b231207ebda63774e5cd18fa4fdb70d 100644
--- a/src/platform.h
+++ b/src/platform.h
@@ -79,6 +79,7 @@ int random();
 #endif  // WIN32
 
 #include "atomicops.h"
+#include "lazy-instance.h"
 #include "platform-tls.h"
 #include "utils.h"
 #include "v8globals.h"
@@ -522,6 +523,24 @@ class Mutex {
   virtual bool TryLock() = 0;
 };
 
+struct CreateMutexTrait {
+  static Mutex* Create() {
+    return OS::CreateMutex();
+  }
+};
+
+// POD Mutex initialized lazily (i.e. the first time Pointer() is called).
+// Usage:
+//   static LazyMutex my_mutex = LAZY_MUTEX_INITIALIZER;
+//
+//   void my_function() {
+//     ScopedLock my_lock(my_mutex.Pointer());
+//     // Do something.
+//   }
+//
+typedef LazyDynamicInstance<Mutex, CreateMutexTrait>::type LazyMutex;
+
+#define LAZY_MUTEX_INITIALIZER LAZY_DYNAMIC_INSTANCE_INITIALIZER
 
 // ----------------------------------------------------------------------------
 // ScopedLock
@@ -571,6 +590,30 @@ class Semaphore {
   virtual void Signal() = 0;
 };
 
+template <int InitialValue>
+struct CreateSemaphoreTrait {
+  static Semaphore* Create() {
+    return OS::CreateSemaphore(InitialValue);
+  }
+};
+
+// POD Semaphore initialized lazily (i.e. the first time Pointer() is called).
+// Usage:
+//   // The following semaphore starts at 0.
+//   static LazySemaphore<0>::type my_semaphore = LAZY_SEMAPHORE_INITIALIZER;
+//
+//   void my_function() {
+//     // Do something with my_semaphore.Pointer().
+//   }
+//
+template <int InitialValue>
+struct LazySemaphore {
+  typedef typename LazyDynamicInstance<
+      Semaphore, CreateSemaphoreTrait<InitialValue> >::type type;
+};
+
+#define LAZY_SEMAPHORE_INITIALIZER LAZY_DYNAMIC_INSTANCE_INITIALIZER
+
 
 // ----------------------------------------------------------------------------
 // Socket