[Blimp] Adds Blimp EngineSession and ClientSession skeleton

blimp/engine/browser/blimp_client_session_manager.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/engine/browser/blimp_client_session_manager.h"
+
+#include "base/command_line.h"
+#include "blimp/engine/browser/blimp_client_session.h"
+#include "blimp/engine/browser/blimp_client_session_manager_delegate.h"
+#include "blimp/engine/ui/blimp_screen.h"
+#include "net/base/net_module.h"
+#include "net/log/net_log.h"
+#include "url/gurl.h"
+
+namespace blimp {
+namespace engine {

[Kevin M, 2015/10/14 17:52:56]

Since we decided on using the Blimp prefix for class names, we probably won't
need subnamespaces anymore.

[haibinlu, 2015/10/15 01:59:28]

'engine' namespace is used through the engine folder. we can discuss this and
remove it if everybody agrees.

+
+namespace {
+
+const char kDefaultURL[] = "https://www.google.com/";
+
+GURL GetStartupURL() {

[Kevin M, 2015/10/14 17:52:57]

Command line parsing should be in or around the main function, not this deep.

[haibinlu, 2015/10/15 01:59:28]

moved to main_parts. this is just for dev purpose before we can pass in URL from
the client. 

+  base::CommandLine* command_line = base::CommandLine::ForCurrentProcess();
+  const base::CommandLine::StringVector& args = command_line->GetArgs();
+  if (args.empty())
+    return GURL(kDefaultURL);
+
+  GURL url(args[0]);
+  if (url.is_valid() && url.has_scheme())
+    return url;
+
+  return GURL(kDefaultURL);
+}
+
+}  // namespace
+
+BlimpClientSessionManager::BlimpClientSessionManager(
+    BlimpClientSessionManagerDelegate* delegate,
+    net::NetLog* net_log)
+    : delegate_(delegate), net_log_(net_log) {}
+
+BlimpClientSessionManager::~BlimpClientSessionManager() {}
+
+void BlimpClientSessionManager::AttachTestClientSession() {
+  DCHECK(delegate_);

[Kevin M, 2015/10/14 17:52:56]

Test support code doesn't belong here. Factor out session construction into the
caller or a test support helper fn.

[haibinlu, 2015/10/15 01:59:28]

done per offline discussion

+  if (!active_session_)
+    active_session_.reset(
+        new BlimpClientSession(gfx::Size(BlimpScreen::kDefaultDisplayWidth,
+                                         BlimpScreen::kDefaultDisplayHeight),
+                               GetStartupURL()));
+  delegate_->AttachClientSession(active_session_.get());
+}
+
+}  // namespace engine
+}  // namespace blimp