Port the render_view_host_manager_browsertest.cc to content_browsertests.

content/test/content_browser_test_utils.h

 // 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.
 
 #ifndef CONTENT_TEST_CONTENT_BROWSER_TEST_UTILS_H_
 #define CONTENT_TEST_CONTENT_BROWSER_TEST_UTILS_H_
 
+#include "base/memory/ref_counted.h"
 #include "googleurl/src/gurl.h"
 #include "ui/gfx/native_widget_types.h"
 
 class FilePath;
 
 namespace gfx {
 class Rect;
 }
 
 // A collections of functions designed for use with content_browsertests.
 // Note: if a function here also works with browser_tests, it should be in
 // content\public\test\browser_test_utils.h
 
 namespace content {
 
+class MessageLoopRunner;
 class Shell;
 
 // Generate the file path for testing a particular test.
 // The file for the tests is all located in
 // content/test/data/dir/<file>
 // The returned path is FilePath format.
 FilePath GetTestFilePath(const char* dir, const char* file);
 
 // Generate the URL for testing a particular test.
 // HTML for the tests is all located in
 // test_root_directory/dir/<file>
 // The returned path is GURL format.
 GURL GetTestUrl(const char* dir, const char* file);
 
 // Navigates the selected tab of |window| to |url|, blocking until the
 // navigation finishes.
 void NavigateToURL(Shell* window, const GURL& url);
 
 // Navigates the selected tab of |window| to |url|, blocking until the given
 // number of navigations finishes.
 void NavigateToURLBlockUntilNavigationsComplete(Shell* window,
                                                 const GURL& url,
                                                 int number_of_navigations);
 
 // Wait until an application modal dialog is requested.
 void WaitForAppModalDialog(Shell* window);
 
+// Used to wait for a new Shell window to be created. Instantiate this object
+// before the operation that will create the window.
+class ShellAddedObserver {
+ public:
+  ShellAddedObserver();
+  ~ShellAddedObserver();
+
+  // Will run a message loop to wait for the new window if it hasn't been
+  // created since the constructor.
+  Shell* GetShell();
+
+ private:
+  void ShellCreated(Shell* shell);
+
+  Shell* shell_;
+  scoped_refptr<MessageLoopRunner> runner_;
+
+  DISALLOW_COPY_AND_ASSIGN(ShellAddedObserver);
+};
+
 #if defined OS_MACOSX
 void SetWindowBounds(gfx::NativeWindow window, const gfx::Rect& bounds);
 #endif
 
 }  // namespace content
 
 #endif  // CONTENT_TEST_CONTENT_BROWSER_TEST_UTILS_H_