Move all the examples from the talk directory into the webrtc examples directory.

Significant changes:

- move the libjingle_examples.gyp file into webrtc directory.
- rename talk/examples/android to webrtc/examples/androidapp to avoid name conflicts.
- update paths in talk/libjingle_tests.gyp to point to webrtc directory for Objective-C test.

BUG=
R=pthatcher@webrtc.org, tkchin@webrtc.org

Review URL: https://codereview.webrtc.org/1235563006 .

Cr-Commit-Position: refs/heads/master@{#9681}

webrtc/examples/peerconnection/client/linux/main.cc

@@ -0,0 +1,105 @@
+/*
+ *  Copyright 2012 The WebRTC Project Authors. All rights reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include <gtk/gtk.h>
+
+#include "webrtc/examples/peerconnection/client/conductor.h"
+#include "webrtc/examples/peerconnection/client/flagdefs.h"
+#include "webrtc/examples/peerconnection/client/linux/main_wnd.h"
+#include "webrtc/examples/peerconnection/client/peer_connection_client.h"
+
+#include "webrtc/base/ssladapter.h"
+#include "webrtc/base/thread.h"
+
+class CustomSocketServer : public rtc::PhysicalSocketServer {
+ public:
+  CustomSocketServer(rtc::Thread* thread, GtkMainWnd* wnd)
+      : thread_(thread), wnd_(wnd), conductor_(NULL), client_(NULL) {}
+  virtual ~CustomSocketServer() {}
+
+  void set_client(PeerConnectionClient* client) { client_ = client; }
+  void set_conductor(Conductor* conductor) { conductor_ = conductor; }
+
+  // Override so that we can also pump the GTK message loop.
+  virtual bool Wait(int cms, bool process_io) {
+    // Pump GTK events.
+    // TODO: We really should move either the socket server or UI to a
+    // different thread.  Alternatively we could look at merging the two loops
+    // by implementing a dispatcher for the socket server and/or use
+    // g_main_context_set_poll_func.
+      while (gtk_events_pending())
+        gtk_main_iteration();
+
+    if (!wnd_->IsWindow() && !conductor_->connection_active() &&
+        client_ != NULL && !client_->is_connected()) {
+      thread_->Quit();
+    }
+    return rtc::PhysicalSocketServer::Wait(0/*cms == -1 ? 1 : cms*/,
+                                                 process_io);
+  }
+
+ protected:
+  rtc::Thread* thread_;
+  GtkMainWnd* wnd_;
+  Conductor* conductor_;
+  PeerConnectionClient* client_;
+};
+
+int main(int argc, char* argv[]) {
+  gtk_init(&argc, &argv);
+  g_type_init();
+  // g_thread_init API is deprecated since glib 2.31.0, see release note:
+  // http://mail.gnome.org/archives/gnome-announce-list/2011-October/msg00041.html
+#if !GLIB_CHECK_VERSION(2, 31, 0)
+    g_thread_init(NULL);
+#endif
+
+  rtc::FlagList::SetFlagsFromCommandLine(&argc, argv, true);
+  if (FLAG_help) {
+    rtc::FlagList::Print(NULL, false);
+    return 0;
+  }
+
+  // Abort if the user specifies a port that is outside the allowed
+  // range [1, 65535].
+  if ((FLAG_port < 1) || (FLAG_port > 65535)) {
+    printf("Error: %i is not a valid port.\n", FLAG_port);
+    return -1;
+  }
+
+  GtkMainWnd wnd(FLAG_server, FLAG_port, FLAG_autoconnect, FLAG_autocall);
+  wnd.Create();
+
+  rtc::AutoThread auto_thread;
+  rtc::Thread* thread = rtc::Thread::Current();
+  CustomSocketServer socket_server(thread, &wnd);
+  thread->set_socketserver(&socket_server);
+
+  rtc::InitializeSSL();
+  // Must be constructed after we set the socketserver.
+  PeerConnectionClient client;
+  rtc::scoped_refptr<Conductor> conductor(
+      new rtc::RefCountedObject<Conductor>(&client, &wnd));
+  socket_server.set_client(&client);
+  socket_server.set_conductor(conductor);
+
+  thread->Run();
+
+  // gtk_main();
+  wnd.Destroy();
+
+  thread->set_socketserver(NULL);
+  // TODO: Run the Gtk main loop to tear down the connection.
+  //while (gtk_events_pending()) {
+  //  gtk_main_iteration();
+  //}
+  rtc::CleanupSSL();
+  return 0;
+}