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}
diff --git a/webrtc/examples/peerconnection/server/utils.cc b/webrtc/examples/peerconnection/server/utils.cc
new file mode 100644
index 0000000..93a6d05
--- /dev/null
+++ b/webrtc/examples/peerconnection/server/utils.cc
@@ -0,0 +1,25 @@
+/*
+ *  Copyright 2011 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 "webrtc/examples/peerconnection/server/utils.h"
+
+#include <stdio.h>
+
+#include "webrtc/base/stringencode.h"
+
+using rtc::ToString;
+
+std::string int2str(int i) {
+  return ToString<int>(i);
+}
+
+std::string size_t2str(size_t i) {
+  return ToString<size_t>(i);
+}