Implement AutomationNode.querySelector().

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/api/automation_internal/automation_util.h"
 #include "chrome/browser/extensions/chrome_extension_function.h"
 #include "chrome/browser/extensions/extension_apitest.h"
@@ skipping 154 matching lines @@
                                   "desktop_not_supported.html")) << message_;
 }
 #endif
 
 IN_PROC_BROWSER_TEST_F(AutomationApiTest, CloseTab) {
   StartEmbeddedTestServer();
   ASSERT_TRUE(RunExtensionSubtest("automation/tests/tabs", "close_tab.html"))
       << message_;
 }
 
+IN_PROC_BROWSER_TEST_F(AutomationApiTest, Query) {
+  StartEmbeddedTestServer();
+  ASSERT_TRUE(RunExtensionSubtest("automation/tests/tabs", "query.html"))
+      << message_;
+}
+
 static const int kPid = 1;
 static const int kTab0Rid = 1;
 static const int kTab1Rid = 2;
 
 using content::BrowserContext;
 
 typedef ui::AXTreeSerializer<const ui::AXNode*> TreeSerializer;
 typedef ui::AXTreeSource<const ui::AXNode*> TreeSource;
 
 #define AX_EVENT_ASSERT_EQUAL ui::AX_EVENT_LOAD_COMPLETE
@@ skipping 306 matching lines @@
       "automationInternal.enableTab",
       FakeAutomationInternalEnableTabFunctionFactory));
   ASSERT_TRUE(extensions::ExtensionFunctionDispatcher::OverrideFunction(
       "automationInternal.performAction",
       FakeAutomationInternalPerformActionFunctionFactory));
   ASSERT_TRUE(RunExtensionSubtest("automation/tests/generated",
                                   "generated_trees.html")) << message_;
 }
 
 }  // namespace extensions