Move more Mojo bindings helpers out of internal namespace

mojo/public/cpp/bindings/sync_handle_watcher.h

 // Copyright 2016 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_PUBLIC_CPP_BINDINGS_LIB_SYNC_HANDLE_WATCHER_H_
-#define MOJO_PUBLIC_CPP_BINDINGS_LIB_SYNC_HANDLE_WATCHER_H_
+#ifndef MOJO_PUBLIC_CPP_BINDINGS_SYNC_HANDLE_WATCHER_H_
+#define MOJO_PUBLIC_CPP_BINDINGS_SYNC_HANDLE_WATCHER_H_
 
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "base/threading/thread_checker.h"
 #include "mojo/public/cpp/bindings/sync_handle_registry.h"
 #include "mojo/public/cpp/system/core.h"
 
 namespace mojo {
-namespace internal {
 
 // SyncHandleWatcher supports watching a handle synchronously. It also supports
 // registering the handle with a thread-local storage (SyncHandleRegistry), so
 // that when other SyncHandleWatcher instances on the same thread perform sync
 // handle watching, this handle will be watched together.
 //
 // SyncHandleWatcher is used for sync methods. While a sync call is waiting for
 // response, we would like to block the thread. On the other hand, we need
 // incoming sync method requests on the same thread to be able to reenter. We
 // also need master interface endpoints to continue dispatching messages for
@@ skipping 37 matching lines @@
 
   scoped_refptr<SyncHandleRegistry> registry_;
 
   scoped_refptr<base::RefCountedData<bool>> destroyed_;
 
   base::ThreadChecker thread_checker_;
 
   DISALLOW_COPY_AND_ASSIGN(SyncHandleWatcher);
 };
 
-}  // namespace internal
 }  // namespace mojo
 
-#endif  // MOJO_PUBLIC_CPP_BINDINGS_LIB_SYNC_HANDLE_WATCHER_H_
+#endif  // MOJO_PUBLIC_CPP_BINDINGS_SYNC_HANDLE_WATCHER_H_