Move session into //blimp/client/app and update GN files.

blimp/client/app/linux/blimp_client_session_linux.h

 // 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.
 
 #ifndef BLIMP_CLIENT_APP_LINUX_BLIMP_CLIENT_SESSION_LINUX_H_
 #define BLIMP_CLIENT_APP_LINUX_BLIMP_CLIENT_SESSION_LINUX_H_
 
 #include "base/macros.h"
 #include "blimp/client/app/linux/blimp_display_manager.h"
+#include "blimp/client/app/session/blimp_client_session.h"
 #include "blimp/client/core/contents/ime_feature.h"
 #include "blimp/client/core/contents/navigation_feature.h"
-#include "blimp/client/session/blimp_client_session.h"
 
 namespace ui {
 class PlatformEventSource;
 }
 
 namespace blimp {
 namespace client {
 
 class BlimpClientSessionLinux : public BlimpClientSession,
                                 public BlimpDisplayManagerDelegate {
@@ skipping 11 matching lines @@
       navigation_feature_delegate_;
   std::unique_ptr<ImeFeature::Delegate> ime_feature_delegate_;
 
   DISALLOW_COPY_AND_ASSIGN(BlimpClientSessionLinux);
 };
 
 }  // namespace client
 }  // namespace blimp
 
 #endif  // BLIMP_CLIENT_APP_LINUX_BLIMP_CLIENT_SESSION_LINUX_H_