Moving src/webrtc into src/.

In order to eliminate the WebRTC Subtree mirror in Chromium, 
WebRTC is moving the content of the src/webrtc directory up
to the src/ directory.

NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
TBR=tommi@webrtc.org

Bug: chromium:611808
Change-Id: Iac59c5b51b950f174119565bac87955a7994bc38
Reviewed-on: https://webrtc-review.googlesource.com/1560
Commit-Queue: Mirko Bonadei <mbonadei@webrtc.org>
Reviewed-by: Henrik Kjellander <kjellander@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#19845}

rtc_base/asyncudpsocket.cc

@@ -0,0 +1,130 @@
+/*
+ *  Copyright 2004 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/rtc_base/asyncudpsocket.h"
+#include "webrtc/rtc_base/checks.h"
+#include "webrtc/rtc_base/logging.h"
+
+namespace rtc {
+
+static const int BUF_SIZE = 64 * 1024;
+
+AsyncUDPSocket* AsyncUDPSocket::Create(
+    AsyncSocket* socket,
+    const SocketAddress& bind_address) {
+  std::unique_ptr<AsyncSocket> owned_socket(socket);
+  if (socket->Bind(bind_address) < 0) {
+    LOG(LS_ERROR) << "Bind() failed with error " << socket->GetError();
+    return nullptr;
+  }
+  return new AsyncUDPSocket(owned_socket.release());
+}
+
+AsyncUDPSocket* AsyncUDPSocket::Create(SocketFactory* factory,
+                                       const SocketAddress& bind_address) {
+  AsyncSocket* socket =
+      factory->CreateAsyncSocket(bind_address.family(), SOCK_DGRAM);
+  if (!socket)
+    return nullptr;
+  return Create(socket, bind_address);
+}
+
+AsyncUDPSocket::AsyncUDPSocket(AsyncSocket* socket)
+    : socket_(socket) {
+  size_ = BUF_SIZE;
+  buf_ = new char[size_];
+
+  // The socket should start out readable but not writable.
+  socket_->SignalReadEvent.connect(this, &AsyncUDPSocket::OnReadEvent);
+  socket_->SignalWriteEvent.connect(this, &AsyncUDPSocket::OnWriteEvent);
+}
+
+AsyncUDPSocket::~AsyncUDPSocket() {
+  delete [] buf_;
+}
+
+SocketAddress AsyncUDPSocket::GetLocalAddress() const {
+  return socket_->GetLocalAddress();
+}
+
+SocketAddress AsyncUDPSocket::GetRemoteAddress() const {
+  return socket_->GetRemoteAddress();
+}
+
+int AsyncUDPSocket::Send(const void *pv, size_t cb,
+                         const rtc::PacketOptions& options) {
+  rtc::SentPacket sent_packet(options.packet_id, rtc::TimeMillis());
+  int ret = socket_->Send(pv, cb);
+  SignalSentPacket(this, sent_packet);
+  return ret;
+}
+
+int AsyncUDPSocket::SendTo(const void *pv, size_t cb,
+                           const SocketAddress& addr,
+                           const rtc::PacketOptions& options) {
+  rtc::SentPacket sent_packet(options.packet_id, rtc::TimeMillis());
+  int ret = socket_->SendTo(pv, cb, addr);
+  SignalSentPacket(this, sent_packet);
+  return ret;
+}
+
+int AsyncUDPSocket::Close() {
+  return socket_->Close();
+}
+
+AsyncUDPSocket::State AsyncUDPSocket::GetState() const {
+  return STATE_BOUND;
+}
+
+int AsyncUDPSocket::GetOption(Socket::Option opt, int* value) {
+  return socket_->GetOption(opt, value);
+}
+
+int AsyncUDPSocket::SetOption(Socket::Option opt, int value) {
+  return socket_->SetOption(opt, value);
+}
+
+int AsyncUDPSocket::GetError() const {
+  return socket_->GetError();
+}
+
+void AsyncUDPSocket::SetError(int error) {
+  return socket_->SetError(error);
+}
+
+void AsyncUDPSocket::OnReadEvent(AsyncSocket* socket) {
+  RTC_DCHECK(socket_.get() == socket);
+
+  SocketAddress remote_addr;
+  int64_t timestamp;
+  int len = socket_->RecvFrom(buf_, size_, &remote_addr, &timestamp);
+  if (len < 0) {
+    // An error here typically means we got an ICMP error in response to our
+    // send datagram, indicating the remote address was unreachable.
+    // When doing ICE, this kind of thing will often happen.
+    // TODO: Do something better like forwarding the error to the user.
+    SocketAddress local_addr = socket_->GetLocalAddress();
+    LOG(LS_INFO) << "AsyncUDPSocket[" << local_addr.ToSensitiveString() << "] "
+                 << "receive failed with error " << socket_->GetError();
+    return;
+  }
+
+  // TODO: Make sure that we got all of the packet.
+  // If we did not, then we should resize our buffer to be large enough.
+  SignalReadPacket(
+      this, buf_, static_cast<size_t>(len), remote_addr,
+      (timestamp > -1 ? PacketTime(timestamp, 0) : CreatePacketTime(0)));
+}
+
+void AsyncUDPSocket::OnWriteEvent(AsyncSocket* socket) {
+  SignalReadyToSend(this);
+}
+
+}  // namespace rtc