Mojo: Move public C system header files to mojo/public/c/system/.

mojo/system/waiter.h

 // Copyright 2013 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 MOJO_SYSTEM_WAITER_H_
 #define MOJO_SYSTEM_WAITER_H_
 
 #include "base/basictypes.h"
 #include "base/synchronization/condition_variable.h"
 #include "base/synchronization/lock.h"
-#include "mojo/public/system/core.h"
+#include "mojo/public/c/system/core.h"
 #include "mojo/system/system_impl_export.h"
 
 namespace mojo {
 namespace system {
 
 // IMPORTANT (all-caps gets your attention, right?): |Waiter| methods are called
 // under other locks, in particular, |Dispatcher::lock_|s, so |Waiter| methods
 // must never call out to other objects (in particular, |Dispatcher|s). This
 // class is thread-safe.
 class MOJO_SYSTEM_IMPL_EXPORT Waiter {
@@ skipping 30 matching lines @@
   bool awoken_;
   MojoResult wait_result_;
 
   DISALLOW_COPY_AND_ASSIGN(Waiter);
 };
 
 }  // namespace system
 }  // namespace mojo
 
 #endif  // MOJO_SYSTEM_WAITER_H_