Fail gracefully when starting Chrome with an invalid kProfileDirectory.

chrome/browser/ui/browser_browsertest.cc

 // Copyright 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 <string>
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/compiler_specific.h"
 #include "base/files/file_path.h"
@@ skipping 31 matching lines @@
 #include "chrome/browser/ui/browser_tabstrip.h"
 #include "chrome/browser/ui/browser_ui_prefs.h"
 #include "chrome/browser/ui/browser_window.h"
 #include "chrome/browser/ui/extensions/app_launch_params.h"
 #include "chrome/browser/ui/extensions/application_launch.h"
 #include "chrome/browser/ui/host_desktop.h"
 #include "chrome/browser/ui/startup/startup_browser_creator.h"
 #include "chrome/browser/ui/startup/startup_browser_creator_impl.h"
 #include "chrome/browser/ui/tabs/pinned_tab_codec.h"
 #include "chrome/browser/ui/tabs/tab_strip_model.h"
+#include "chrome/browser/ui/user_manager.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/extensions/manifest_handlers/app_launch_info.h"
 #include "chrome/common/pref_names.h"
 #include "chrome/common/url_constants.h"
 #include "chrome/grit/chromium_strings.h"
 #include "chrome/grit/generated_resources.h"
 #include "chrome/test/base/in_process_browser_test.h"
 #include "chrome/test/base/test_switches.h"
 #include "chrome/test/base/ui_test_utils.h"
 #include "components/app_modal/app_modal_dialog.h"
@@ skipping 2130 matching lines @@
     base::FilePath tmp_profile = temp_dir_.path().AppendASCII("tmp_profile");
     tmp_profile = tmp_profile.Append(L"Test Chrome\\");
 
     ASSERT_TRUE(base::CreateDirectory(tmp_profile));
     command_line->AppendSwitchPath(switches::kUserDataDir, tmp_profile);
   }
 
   base::ScopedTempDir temp_dir_;
 };
 
+#if !defined(OS_CHROMEOS) && !defined(OS_ANDROID)
+// This test verifies that if Chrome is launched with an invalid
+// profile-directory argument, then the User Manager is shown instead.
+class LaunchBrowserWithInvalidProfileDirectory : public BrowserTest {
+ public:
+  LaunchBrowserWithInvalidProfileDirectory() {}
+
+  virtual void SetUpCommandLine(base::CommandLine* command_line) override {
+    command_line->AppendSwitch(switches::kEnableNewAvatarMenu);
+    command_line->AppendSwitchASCII(switches::kProfileDirectory,
+        "SomeOtherProfile");
+  }
+
+  base::ScopedTempDir temp_dir_;
+};
+
+IN_PROC_BROWSER_TEST_F(LaunchBrowserWithInvalidProfileDirectory,
+                       TestUserManagerShown) {
+  // No browser window should be open, and the User Manager should be showing.
+  EXPECT_FALSE(browser());
+  EXPECT_TRUE(UserManager::IsShowing());
+  // Hide the User Manager so that the test can die.
+  UserManager::Hide();
+}
+#endif  // !defined(OS_CHROMEOS) && !defined(OS_ANDROID)
+
 IN_PROC_BROWSER_TEST_F(LaunchBrowserWithTrailingSlashDatadir,
                        TestTrailingSlashUserDataDir) {
   // Verify that the window is present.
   ASSERT_TRUE(browser());
   ASSERT_TRUE(browser()->profile());
   // Verify that the profile has been added correctly to the ProfileInfoCache.
   ASSERT_EQ(1u, g_browser_process->profile_manager()->
       GetProfileInfoCache().GetNumberOfProfiles());
 }
 #endif  // defined(OS_WIN)
@@ skipping 485 matching lines @@
 #endif
   EXPECT_EQ(exp_commit_size, rwhv_commit_size2);
   EXPECT_EQ(exp_commit_size, wcv_commit_size2);
   gfx::Size exp_final_size(initial_wcv_size);
   exp_final_size.Enlarge(wcv_resize_insets.width(),
                          wcv_resize_insets.height() + height_inset);
   EXPECT_EQ(exp_final_size,
             web_contents->GetRenderWidgetHostView()->GetViewBounds().size());
   EXPECT_EQ(exp_final_size, web_contents->GetContainerBounds().size());
 }