Fix WebUSB notification on Chrome OS with no windows open.

chrome/browser/chrome_webusb_browser_client_unittest.cc

 // Copyright 2015 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/browser/chrome_webusb_browser_client.h"
 
 #include "base/macros.h"
 #include "base/strings/string16.h"
 #include "base/strings/utf_string_conversions.h"
 #include "components/webusb/webusb_detector.h"
@@ skipping 63 matching lines @@
   device_client_.mock_usb_service().AddDevice(device);
 
   message_center::MessageCenter* message_center =
       message_center::MessageCenter::Get();
   ASSERT_TRUE(message_center != nullptr);
 
   message_center::Notification* notification =
       message_center->FindVisibleNotificationById(guid);
   ASSERT_TRUE(notification != nullptr);
 
-  base::string16 expected_title = base::ASCIIToUTF16("Google Product A");
+  base::string16 expected_title =
+      base::ASCIIToUTF16("Google Product A detected");
   EXPECT_EQ(expected_title, notification->title());
 
   base::string16 expected_message =
-      base::ASCIIToUTF16("Click here to visit this page");
+      base::ASCIIToUTF16("Go to www.google.com/A to connect.");
   EXPECT_EQ(expected_message, notification->message());
 
   EXPECT_TRUE(notification->delegate() != nullptr);
 
   device_client_.mock_usb_service().RemoveDevice(device);
 
   // device is removed, so notification should be removed from the
   // message_center too
   EXPECT_EQ(nullptr, message_center->FindVisibleNotificationById(guid));
 }
@@ skipping 89 matching lines @@
   device_client_.mock_usb_service().AddDevice(device_2);
   device_client_.mock_usb_service().AddDevice(device_3);
 
   message_center::MessageCenter* message_center =
       message_center::MessageCenter::Get();
   ASSERT_TRUE(message_center != nullptr);
 
   message_center::Notification* notification_1 =
       message_center->FindVisibleNotificationById(guid_1);
   ASSERT_TRUE(notification_1 != nullptr);
-  base::string16 expected_title_1 = base::ASCIIToUTF16("Google Product A");
+  base::string16 expected_title_1 =
+      base::ASCIIToUTF16("Google Product A detected");
   EXPECT_EQ(expected_title_1, notification_1->title());
+  base::string16 expected_message_1 =
+      base::ASCIIToUTF16("Go to www.google.com/A to connect.");
+  EXPECT_EQ(expected_message_1, notification_1->message());
 
   message_center::Notification* notification_2 =
       message_center->FindVisibleNotificationById(guid_2);
   ASSERT_TRUE(notification_2 != nullptr);
-  base::string16 expected_title_2 = base::ASCIIToUTF16("Google Product B");
+  base::string16 expected_title_2 =
+      base::ASCIIToUTF16("Google Product B detected");
   EXPECT_EQ(expected_title_2, notification_2->title());
+  base::string16 expected_message_2 =
+      base::ASCIIToUTF16("Go to www.google.com/B to connect.");
+  EXPECT_EQ(expected_message_2, notification_2->message());
 
   message_center::Notification* notification_3 =
       message_center->FindVisibleNotificationById(guid_3);
   ASSERT_TRUE(notification_3 != nullptr);
-  base::string16 expected_title_3 = base::ASCIIToUTF16("Google Product C");
+  base::string16 expected_title_3 =
+      base::ASCIIToUTF16("Google Product C detected");
   EXPECT_EQ(expected_title_3, notification_3->title());
-
-  base::string16 expected_message =
-      base::ASCIIToUTF16("Click here to visit this page");
-  EXPECT_EQ(expected_message, notification_1->message());
-  EXPECT_EQ(expected_message, notification_2->message());
-  EXPECT_EQ(expected_message, notification_3->message());
+  base::string16 expected_message_3 =
+      base::ASCIIToUTF16("Go to www.google.com/C to connect.");
+  EXPECT_EQ(expected_message_3, notification_3->message());
 
   EXPECT_TRUE(notification_1->delegate() != nullptr);
   EXPECT_TRUE(notification_2->delegate() != nullptr);
   EXPECT_TRUE(notification_3->delegate() != nullptr);
 
   device_client_.mock_usb_service().RemoveDevice(device_1);
   device_client_.mock_usb_service().RemoveDevice(device_2);
   device_client_.mock_usb_service().RemoveDevice(device_3);
 
   // devices are removed, so notifications should be removed from the
   // message_center too
   EXPECT_EQ(nullptr, message_center->FindVisibleNotificationById(guid_1));
   EXPECT_EQ(nullptr, message_center->FindVisibleNotificationById(guid_2));
   EXPECT_EQ(nullptr, message_center->FindVisibleNotificationById(guid_3));
 }