Rollback of r11015, r11014, r11011, r11010 in trunk branch.

src/platform.h

Index: src/platform.h
diff --git a/src/platform.h b/src/platform.h
index 4ec6057c5df01d563e39d3b8a07457d5bc8e8d96..00819ed6b413b4cab1f274a8b078f59b6f42c5aa 100644
--- a/src/platform.h
+++ b/src/platform.h
@@ -79,7 +79,6 @@ int random();
 #endif  // WIN32
 
 #include "atomicops.h"
-#include "lazy-instance.h"
 #include "platform-tls.h"
 #include "utils.h"
 #include "v8globals.h"
@@ -530,24 +529,6 @@ 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
@@ -597,30 +578,6 @@ 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