Move Mutex and Monitor from vm/ to platform/

runtime/vm/thread.h

Index: runtime/vm/thread.h
diff --git a/runtime/vm/thread.h b/runtime/vm/thread.h
index 2c5fad007022f0c4d2e3b7d78b6591b9a557696f..5b8723e3779b82e2e6557f0ba424a5506081a94c 100644
--- a/runtime/vm/thread.h
+++ b/runtime/vm/thread.h
@@ -6,6 +6,7 @@
 #define VM_THREAD_H_
 
 #include "platform/assert.h"
+#include "platform/thread.h"
 #include "vm/allocation.h"
 #include "vm/globals.h"
 #include "vm/isolate.h"
@@ -39,51 +40,6 @@ class Thread {
 };
 
 
-class Mutex {
- public:
-  Mutex();
-  ~Mutex();
-
-  void Lock();
-  bool TryLock();
-  void Unlock();
-
- private:
-  MutexData data_;
-
-  DISALLOW_COPY_AND_ASSIGN(Mutex);
-};
-
-
-class Monitor {
- public:
-  enum WaitResult {
-    kNotified,
-    kTimedOut
-  };
-
-  static const int64_t kNoTimeout = 0;
-
-  Monitor();
-  ~Monitor();
-
-  void Enter();
-  void Exit();
-
-  // Wait for notification or timeout.
-  WaitResult Wait(int64_t millis);
-
-  // Notify waiting threads.
-  void Notify();
-  void NotifyAll();
-
- private:
-  MonitorData data_;  // OS-specific data.
-
-  DISALLOW_COPY_AND_ASSIGN(Monitor);
-};
-
-
 class MutexLocker : public StackResource {
  public:
   explicit MutexLocker(Mutex* mutex) :