Replace "nested message loop" with "nested run loop" in comments.

mojo/public/cpp/bindings/lib/connector.cc

 // 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.
 
 #include "mojo/public/cpp/bindings/connector.h"
 
 #include <stdint.h>
 #include <utility>
 
 #include "base/bind.h"
@@ skipping 34 matching lines @@
  private:
   const base::WeakPtr<Connector> connector_;
   RunLoopNestingObserver* const nesting_observer_;
   ActiveDispatchTracker* outer_tracker_ = nullptr;
   ActiveDispatchTracker* inner_tracker_ = nullptr;
 
   DISALLOW_COPY_AND_ASSIGN(ActiveDispatchTracker);
 };
 
 // Watches the MessageLoop on the current thread. Notifies the current chain of
-// ActiveDispatchTrackers when a nested message loop is started.
+// ActiveDispatchTrackers when a nested run loop is started.
 class Connector::RunLoopNestingObserver
     : public base::RunLoop::NestingObserver,
       public base::MessageLoop::DestructionObserver {
  public:
   RunLoopNestingObserver() {
     base::RunLoop::AddNestingObserverOnCurrentThread(this);
     base::MessageLoop::current()->AddDestructionObserver(this);
   }
 
   ~RunLoopNestingObserver() override {}
@@ skipping 419 matching lines @@
 void Connector::EnsureSyncWatcherExists() {
   if (sync_watcher_)
     return;
   sync_watcher_.reset(new SyncHandleWatcher(
       message_pipe_.get(), MOJO_HANDLE_SIGNAL_READABLE,
       base::Bind(&Connector::OnSyncHandleWatcherHandleReady,
                  base::Unretained(this))));
 }
 
 }  // namespace mojo