Source release v3.0.0-0-g8d3792b-ce + third_party

Change-Id: I399e71ddfffcd436171d1c60283c63ab4658e0b1

core/include/lock.h

@@ -21,10 +21,6 @@ class Lock {
   void Acquire();
   void Release();
 
-  // Acquires a lock if not held and returns true.
-  // Returns false if the lock is held by another thread.
-  bool Try();
-
   friend class AutoLock;
 
  private:
@@ -50,6 +46,6 @@ class AutoLock {
   CORE_DISALLOW_COPY_AND_ASSIGN(AutoLock);
 };
 
-};  // namespace wvcdm
+}  // namespace wvcdm
 
 #endif  // WVCDM_CORE_LOCK_H_