clang/win: Fix warnings to prepare for building without -Wno-reorder.

components/browser_watcher/window_hang_monitor_win.cc

 // Copyright 2015 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 "components/browser_watcher/window_hang_monitor_win.h"
 
 #include "base/callback.h"
 #include "base/location.h"
 #include "base/logging.h"
 #include "base/message_loop/message_loop.h"
 #include "base/win/message_window.h"
@@ skipping 12 matching lines @@
   }
   return nullptr;
 }
 
 }  // namespace
 
 WindowHangMonitor::WindowHangMonitor(base::TimeDelta ping_interval,
                                      base::TimeDelta timeout,
                                      const WindowEventCallback& callback)
     : callback_(callback),
-      outstanding_ping_(nullptr),
+      ping_interval_(ping_interval),
+      hang_timeout_(timeout),
       timer_(false /* don't retain user task */, false /* don't repeat */),
-      ping_interval_(ping_interval),
-      hang_timeout_(timeout) {
+      outstanding_ping_(nullptr) {
 }
 
 WindowHangMonitor::~WindowHangMonitor() {
   if (outstanding_ping_) {
     // We have an outstanding ping, disable it and leak it intentionally as
     // if the callback arrives eventually, it'll cause a use-after-free.
     outstanding_ping_->monitor = nullptr;
     outstanding_ping_ = nullptr;
   }
 }
@@ skipping 109 matching lines @@
   // 2. The window handle might have been re-assigned to a different process
   //    at any point after we found it.
   HWND hwnd = FindNamedWindowForProcess(window_name_, window_process_.Pid());
   if (hwnd)
     SendPing(hwnd);
   else
     callback_.Run(WINDOW_VANISHED);
 }
 
 }  // namespace browser_watcher