Eliminate ash::internal namespace

ash/system/chromeos/power/power_event_observer_unittest.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 "ash/system/chromeos/power/power_event_observer.h"
 
 #include "ash/test/ash_test_base.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/time/time.h"
 #include "chromeos/dbus/dbus_thread_manager.h"
 #include "chromeos/dbus/power_manager_client.h"
 
 namespace ash {
-namespace internal {
 
 class PowerEventObserverTest : public test::AshTestBase {
  public:
   PowerEventObserverTest() {}
   virtual ~PowerEventObserverTest() {}
 
   // test::AshTestBase::SetUp() overrides:
   virtual void SetUp() OVERRIDE {
     test::AshTestBase::SetUp();
     observer_.reset(new PowerEventObserver());
@@ skipping 36 matching lines @@
   EXPECT_EQ(0, client->GetNumPendingSuspendReadinessCallbacks());
 
   // It also shouldn't request a callback if it isn't instructed to lock the
   // screen.
   observer_->SystemResumed(base::TimeDelta());
   SetShouldLockScreenBeforeSuspending(false);
   observer_->SuspendImminent();
   EXPECT_EQ(0, client->GetNumPendingSuspendReadinessCallbacks());
 }
 
-}  // namespace internal
 }  // namespace ash