arc_bridge: Add more logging, plus cleanup

components/arc/arc_bridge_service.cc

 // Copyright 2015 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 "components/arc/arc_bridge_service.h"
 
 #include <utility>
 
 #include "base/command_line.h"
 #include "base/sequenced_task_runner.h"
@@ skipping 453 matching lines @@
 
   video_ptr_.reset();
   FOR_EACH_OBSERVER(Observer, observer_list(), OnVideoInstanceClosed());
 }
 
 void ArcBridgeService::SetState(State state) {
   DCHECK(CalledOnValidThread());
   // DCHECK on enum classes not supported.
   DCHECK(state_ != state);
   state_ = state;
+  VLOG(2) << "State: " << static_cast<uint32_t>(state_);
   FOR_EACH_OBSERVER(Observer, observer_list(), OnStateChanged(state_));
 }
 
 void ArcBridgeService::SetAvailable(bool available) {
   DCHECK(CalledOnValidThread());
   DCHECK(available_ != available);
   available_ = available;
   FOR_EACH_OBSERVER(Observer, observer_list(), OnAvailableChanged(available_));
 }
 
@@ skipping 15 matching lines @@
   CloseMetricsChannel();
   CloseNetChannel();
   CloseNotificationsChannel();
   ClosePolicyChannel();
   ClosePowerChannel();
   CloseProcessChannel();
   CloseVideoChannel();
 }
 
 }  // namespace arc