If interactive_ui_tests can't change the foreground window, print the name of the Window that is cu…

chrome/test/base/interactive_test_utils_win.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 "chrome/test/base/interactive_test_utils.h"
 
 #include "base/files/file_path.h"
 #include "base/logging.h"
 #include "base/path_service.h"
 #include "base/strings/stringprintf.h"
@@ skipping 28 matching lines @@
   ::ShowWindow(hwnd, SW_SHOW);
 
   if (GetForegroundWindow() != hwnd) {
     VLOG(1) << "Forcefully refocusing front window";
     ui::ForegroundHelper::SetForeground(hwnd);
   }
 
   // ShowWindow does not necessarily activate the window. In particular if a
   // window from another app is the foreground window then the request to
   // activate the window fails. See SetForegroundWindow for details.
-  return GetForegroundWindow() == hwnd;
+  HWND foreground_window = GetForegroundWindow();
+  if (foreground_window == hwnd)
+    return true;
+
+  wchar_t window_title[256];
+  GetWindowText(foreground_window, window_title, arraysize(window_title));
+  LOG(ERROR) << "ShowAndFocusNativeWindow failed. foreground window text: " <<
+      window_title;
+  return false;
 }
 
 }  // namespace ui_test_utils