(3) Rename files to snake_case: move the files

Mechanically generated with this command:

tools_webrtc/do-rename.sh move all-renames.txt

Bug: webrtc:10159
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Change-Id: I8b05b6eab9b9d18b29c2199bbea239e9add1e690
Reviewed-on: https://webrtc-review.googlesource.com/c/115481
Reviewed-by: Karl Wiberg <kwiberg@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#26225}

rtc_base/win32_socket_init.h

@@ -0,0 +1,41 @@
+/*
+ *  Copyright 2009 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.
+ */
+
+#ifndef RTC_BASE_WIN32SOCKETINIT_H_
+#define RTC_BASE_WIN32SOCKETINIT_H_
+
+#ifndef WEBRTC_WIN
+#error "Only #include this header in Windows builds"
+#endif
+
+#include "rtc_base/win32.h"
+
+namespace rtc {
+
+class WinsockInitializer {
+ public:
+  WinsockInitializer() {
+    WSADATA wsaData;
+    WORD wVersionRequested = MAKEWORD(1, 0);
+    err_ = WSAStartup(wVersionRequested, &wsaData);
+  }
+  ~WinsockInitializer() {
+    if (!err_)
+      WSACleanup();
+  }
+  int error() { return err_; }
+
+ private:
+  int err_;
+};
+
+}  // namespace rtc
+
+#endif  // RTC_BASE_WIN32SOCKETINIT_H_