Move platform_thread to base/threading and put in the base namespace. I left ...

net/base/listen_socket.cc

-// Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
+// Copyright (c) 2010 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 "build/build_config.h"
 
 #if defined(OS_WIN)
 // winsock2.h must be included first in order to ensure it is included before
 // windows.h.
 #include <winsock2.h>
 #elif defined(OS_POSIX)
 #include <errno.h>
 #include <netinet/in.h>
 #include <sys/socket.h>
 #include <arpa/inet.h>
 #include "net/base/net_errors.h"
 #if defined(USE_SYSTEM_LIBEVENT)
 #include <event.h>
 #else
 #include "third_party/libevent/event.h"
 #endif
 #endif
 
 #include "base/eintr_wrapper.h"
+#include "base/threading/platform_thread.h"
 #include "net/base/net_util.h"
 #include "net/base/listen_socket.h"
 
 #if defined(OS_WIN)
 typedef int socklen_t;
 #endif  // defined(OS_WIN)
 
 namespace {
 
 const int kReadBufSize = 4096;
@@ skipping 189 matching lines @@
         break;
       }
       // Otherwise we would block, and now we have to wait for a retry.
       // Fall through to PlatformThread::YieldCurrentThread()
     } else {
       // sent != len_left according to the shortcut above.
       // Shift the buffer start and send the remainder after a short while.
       send_buf += sent;
       len_left -= sent;
     }
-    PlatformThread::YieldCurrentThread();
+    base::PlatformThread::YieldCurrentThread();
   }
 }
 
 void ListenSocket::Send(const char* bytes, int len, bool append_linefeed) {
   SendInternal(bytes, len);
   if (append_linefeed) {
     SendInternal("\r\n", 2);
   }
 }
 
@@ skipping 65 matching lines @@
   }
 }
 
 void ListenSocket::OnFileCanWriteWithoutBlocking(int fd) {
   // MessagePumpLibevent callback, we don't listen for write events
   // so we shouldn't ever reach here.
   NOTREACHED();
 }
 
 #endif