[Blimp client] Move client code into blimp::client namespace

blimp/client/session/blimp_client_session_linux.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 "blimp/client/session/blimp_client_session_linux.h"
 
 #include "base/message_loop/message_loop.h"
 #include "blimp/client/linux/blimp_display_manager.h"
 #include "ui/events/platform/platform_event_source.h"
 #include "ui/gfx/geometry/size.h"
 
 namespace blimp {
+namespace client {
 
 BlimpClientSessionLinux::BlimpClientSessionLinux()
     : event_source_(ui::PlatformEventSource::CreateDefault()) {
   blimp_display_manager_.reset(new BlimpDisplayManager(gfx::Size(800, 600),
                                                        this,
                                                        GetRenderWidgetFeature(),
                                                        GetTabControlFeature()));
 }
 
 BlimpClientSessionLinux::~BlimpClientSessionLinux() {}
 
 void BlimpClientSessionLinux::OnClosed() {
   base::MessageLoop::current()->QuitNow();
 }
 
+}  // namespace client
 }  // namespace blimp