Allow requesting Automation tree by tabId

chrome/browser/extensions/api/automation/automation_apitest.cc

 // Copyright 2014 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 "base/files/file_path.h"
 #include "base/path_service.h"
 #include "base/strings/string_number_conversions.h"
 #include "chrome/browser/extensions/extension_apitest.h"
 #include "chrome/browser/extensions/extension_test_message_listener.h"
 #include "chrome/browser/ui/tabs/tab_strip_model.h"
@@ skipping 74 matching lines @@
   ASSERT_FALSE(rwh->IsFullAccessibilityModeForTesting());
   ASSERT_TRUE(rwh->IsTreeOnlyAccessibilityModeForTesting());
 }
 
 IN_PROC_BROWSER_TEST_F(AutomationApiTest, SanityCheck) {
   StartEmbeddedTestServer();
   ASSERT_TRUE(RunExtensionSubtest("automation/tests/tabs", "sanity_check.html"))
       << message_;
 }
 
+IN_PROC_BROWSER_TEST_F(AutomationApiTest, GetTreeByTabId) {
+  StartEmbeddedTestServer();
+  ASSERT_TRUE(RunExtensionSubtest("automation/tests/tabs", "tab_id.html"))
+      << message_;
+}
+
 IN_PROC_BROWSER_TEST_F(AutomationApiTest, Events) {
   LoadPage();
   ASSERT_TRUE(RunExtensionSubtest("automation/tests/tabs", "events.html"))
       << message_;
 }
 
 IN_PROC_BROWSER_TEST_F(AutomationApiTest, Actions) {
   LoadPage();
   ASSERT_TRUE(RunExtensionSubtest("automation/tests/tabs", "actions.html"))
       << message_;
@@ skipping 28 matching lines @@
       << message_;
 }
 #else
 IN_PROC_BROWSER_TEST_F(AutomationApiTest, DesktopNotSupported) {
   ASSERT_TRUE(RunExtensionSubtest("automation/tests/desktop",
                                   "desktop_not_supported.html")) << message_;
 }
 #endif
 
 }  // namespace extensions