Add unittests for X11TopmostWindowFinder

ui/base/x/x11_util.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.
 
 // This file defines utility functions for X11 (Linux only). This code has been
 // ported from XCB since we can't use XCB on Ubuntu while its 32-bit support
 // remains woefully incomplete.
 
 #include "ui/base/x/x11_util.h"
 
@@ skipping 868 matching lines @@
                   window,
                   name_atom,
                   type_atom,
                   32,  // size in bits of items in 'value'
                   PropModeReplace,
                   reinterpret_cast<const unsigned char*>(data.get()),
                   value.size());  // num items
   return !err_tracker.FoundNewError();
 }
 
+bool SetAtomProperty(XID window,
+                     const std::string& name,
+                     const std::string& type,
+                     Atom value) {
+  std::vector<Atom> values(1, value);
+  return SetAtomArrayProperty(window, name, type, values);
+}
+
 bool SetAtomArrayProperty(XID window,
                           const std::string& name,
                           const std::string& type,
                           const std::vector<Atom>& value) {
   DCHECK(!value.empty());
   Atom name_atom = GetAtom(name.c_str());
   Atom type_atom = GetAtom(type.c_str());
 
   // XChangeProperty() expects values of type 32 to be longs.
   scoped_ptr<Atom[]> data(new Atom[value.size()]);
@@ skipping 510 matching lines @@
       << "request_code " << static_cast<int>(error_event.request_code) << ", "
       << "minor_code " << static_cast<int>(error_event.minor_code)
       << " (" << request_str << ")";
 }
 
 // ----------------------------------------------------------------------------
 // End of x11_util_internal.h
 
 
 }  // namespace ui