Move WaitForLoadStop from ui_test_utils to browser_test_utils so that it can be reused in content_b…

content/test/browser_test_utils.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 "content/public/test/browser_test_utils.h"
 
 #include "base/command_line.h"
 #include "base/json/json_reader.h"
 #include "base/path_service.h"
 #include "base/process_util.h"
@@ skipping 141 matching lines @@
                          const std::string& query_string) {
   GURL url = net::FilePathToFileURL(path);
   if (!query_string.empty()) {
     GURL::Replacements replacements;
     replacements.SetQueryStr(query_string);
     return url.ReplaceComponents(replacements);
   }
   return url;
 }
 
+void WaitForLoadStop(WebContents* web_contents) {
+    WindowedNotificationObserver load_stop_observer(
+    NOTIFICATION_LOAD_STOP,
+    Source<NavigationController>(&web_contents->GetController()));
+  // In many cases, the load may have finished before we get here.  Only wait if
+  // the tab still has a pending navigation.
+  if (!web_contents->IsLoading())
+    return;
+  load_stop_observer.Wait();
+}
+
+
 void SimulateMouseClick(WebContents* web_contents) {
   int x = web_contents->GetView()->GetContainerSize().width() / 2;
   int y = web_contents->GetView()->GetContainerSize().height() / 2;
   WebKit::WebMouseEvent mouse_event;
   mouse_event.type = WebKit::WebInputEvent::MouseDown;
   mouse_event.button = WebKit::WebMouseEvent::ButtonLeft;
   mouse_event.x = x;
   mouse_event.y = y;
   // Mac needs globalX/globalY for events to plugins.
   gfx::Rect offset;
@@ skipping 295 matching lines @@
   base::LaunchProcess(*cmd_line.get(), options, NULL);
 
 #if defined(OS_POSIX)
   // Just to make sure that the server process terminates certainly.
   if (process_group_id_ != base::kNullProcessHandle)
     base::KillProcessGroup(process_group_id_);
 #endif
 }
 
 }  // namespace content