More DCHECK() updates. A mixture of _EQ and _GE.

base/threading/thread_local_storage_win.cc

Index: base/threading/thread_local_storage_win.cc
diff --git a/base/threading/thread_local_storage_win.cc b/base/threading/thread_local_storage_win.cc
index 667d1b93568146d92a7c1a12b30c8e9643c37cc7..c8128f1c06df4cd894c184d0368e612b4ebfdb47 100644
--- a/base/threading/thread_local_storage_win.cc
+++ b/base/threading/thread_local_storage_win.cc
@@ -47,7 +47,7 @@ void** ThreadLocalStorage::Initialize() {
       TlsFree(value);
     }
   }
-  DCHECK(TlsGetValue(tls_key_) == NULL);
+  DCHECK(!TlsGetValue(tls_key_));
 
   // Create an array to store our data.
   void** tls_data = new void*[kThreadLocalStorageSize];