Switch to static_assert in base/.

base/observer_list_threadsafe.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef BASE_OBSERVER_LIST_THREADSAFE_H_
 #define BASE_OBSERVER_LIST_THREADSAFE_H_
 
 #include <algorithm>
 #include <map>
 
@@ skipping 49 matching lines @@
 class ObserverListThreadSafe;
 
 namespace internal {
 
 // An UnboundMethod is a wrapper for a method where the actual object is
 // provided at Run dispatch time.
 template <class T, class Method, class Params>
 class UnboundMethod {
  public:
   UnboundMethod(Method m, const Params& p) : m_(m), p_(p) {
-    COMPILE_ASSERT(
-        (internal::ParamsUseScopedRefptrCorrectly<Params>::value),
-        badunboundmethodparams);
+    static_assert((internal::ParamsUseScopedRefptrCorrectly<Params>::value),
+                  "bad unbound method params");
   }
   void Run(T* obj) const {
     DispatchToMethod(obj, m_, p_);
   }
  private:
   Method m_;
   Params p_;
 };
 
 }  // namespace internal
@@ skipping 181 matching lines @@
   mutable Lock list_lock_;  // Protects the observer_lists_.
   ObserversListMap observer_lists_;
   const NotificationType type_;
 
   DISALLOW_COPY_AND_ASSIGN(ObserverListThreadSafe);
 };
 
 }  // namespace base
 
 #endif  // BASE_OBSERVER_LIST_THREADSAFE_H_