[Blimp] Adds Blimp EngineSession and ClientSession skeleton.

BlimpClientSessionManager (to be added) authenticates and creates client sessions. Once a client session is authenticated, it is given to the engine session. There is at most one active client session attached to the engine session.

The engine session manages a list of web contents.

Review URL: https://codereview.chromium.org/1403083002

Cr-Commit-Position: refs/heads/master@{#354388}

3 files changed, 38 insertions, 0 deletions

diff --git a/blimp/net/BUILD.gn b/blimp/net/BUILD.gn
index 5a1784c..05a1ff3 100644
--- a/blimp/net/BUILD.gn
+++ b/blimp/net/BUILD.gn
@@ -6,6 +6,8 @@ import("//testing/test.gni")
 
 component("blimp_net") {
   sources = [
+    "blimp_client_session.cc",
+    "blimp_client_session.h",
     "blimp_message_dispatcher.cc",
     "blimp_message_dispatcher.h",
     "blimp_message_receiver.h",
diff --git a/blimp/net/blimp_client_session.cc b/blimp/net/blimp_client_session.cc
new file mode 100644
index 0000000..c412be2
--- /dev/null
+++ b/blimp/net/blimp_client_session.cc
@@ -0,0 +1,13 @@
+// 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/net/blimp_client_session.h"
+
+namespace blimp {
+
+BlimpClientSession::BlimpClientSession() {}
+
+BlimpClientSession::~BlimpClientSession() {}
+
+}  // namespace blimp
diff --git a/blimp/net/blimp_client_session.h b/blimp/net/blimp_client_session.h
new file mode 100644
index 0000000..7cde153
--- /dev/null
+++ b/blimp/net/blimp_client_session.h
@@ -0,0 +1,23 @@
+// 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_NET_BLIMP_CLIENT_SESSION_H_
+#define BLIMP_NET_BLIMP_CLIENT_SESSION_H_
+
+#include "base/macros.h"
+
+namespace blimp {
+
+class BlimpClientSession {
+ public:
+  BlimpClientSession();
+  ~BlimpClientSession();
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(BlimpClientSession);
+};
+
+}  // namespace blimp
+
+#endif  // BLIMP_NET_BLIMP_CLIENT_SESSION_H_