replace COMPILE_ASSERT with static_assert in ui/

ui/aura/window_tree_host_x11.cc

 // Copyright (c) 2012 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 "ui/aura/window_tree_host_x11.h"
 
 #include <strings.h>
 #include <X11/cursorfont.h>
 #include <X11/extensions/XInput2.h>
 #include <X11/extensions/Xrandr.h>
@@ skipping 263 matching lines @@
   protocols[1] = atom_cache_.GetAtom("_NET_WM_PING");
   XSetWMProtocols(xdisplay_, xwindow_, protocols, 2);
 
   // We need a WM_CLIENT_MACHINE and WM_LOCALE_NAME value so we integrate with
   // the desktop environment.
   XSetWMProperties(xdisplay_, xwindow_, NULL, NULL, NULL, 0, NULL, NULL, NULL);
 
   // Likewise, the X server needs to know this window's pid so it knows which
   // program to kill if the window hangs.
   // XChangeProperty() expects "pid" to be long.
-  COMPILE_ASSERT(sizeof(long) >= sizeof(pid_t), pid_t_bigger_than_long);
+  static_assert(sizeof(long) >= sizeof(pid_t),
+                "pid_t should not be larger than long");
   long pid = getpid();
   XChangeProperty(xdisplay_,
                   xwindow_,
                   atom_cache_.GetAtom("_NET_WM_PID"),
                   XA_CARDINAL,
                   32,
                   PropModeReplace,
                   reinterpret_cast<unsigned char*>(&pid), 1);
 
   // Allow subclasses to create and cache additional atoms.
@@ skipping 396 matching lines @@
 }
 
 namespace test {
 
 void SetUseOverrideRedirectWindowByDefault(bool override_redirect) {
   default_override_redirect = override_redirect;
 }
 
 }  // namespace test
 }  // namespace aura