Eliminate ash::internal namespace

ash/system/chromeos/power/tray_power_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/tray_power.h"
 
 #include "ash/ash_switches.h"
 #include "ash/test/ash_test_base.h"
 #include "base/memory/scoped_ptr.h"
 #include "chromeos/dbus/power_manager/power_supply_properties.pb.h"
@@ skipping 24 matching lines @@
  private:
   int add_count_;
   int remove_count_;
 
   DISALLOW_COPY_AND_ASSIGN(MockMessageCenter);
 };
 
 }  // namespace
 
 namespace ash {
-namespace internal {
 
 class TrayPowerTest : public test::AshTestBase {
  public:
   TrayPowerTest() {}
   virtual ~TrayPowerTest() {}
 
   MockMessageCenter* message_center() { return message_center_.get(); }
   TrayPower* tray_power() { return tray_power_.get(); }
 
   // test::AshTestBase::SetUp() overrides:
@@ skipping 169 matching lines @@
   spring.set_external_power(power_manager::
       PowerSupplyProperties_ExternalPower_ORIGINAL_SPRING_CHARGER);
   spring.set_battery_state(
       power_manager::PowerSupplyProperties_BatteryState_FULL);
   spring.set_battery_time_to_empty_sec(0);
   spring.set_battery_time_to_full_sec(0);
   EXPECT_FALSE(UpdateNotificationState(spring));
   EXPECT_EQ(TrayPower::NOTIFICATION_NONE, notification_state());
 }
 
-}  // namespace internal
 }  // namespace ash