More aggressive IO asserts in content_browsertests.

content/browser/accessibility/dump_accessibility_events_browsertest.cc

 // Copyright (c) 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 <stddef.h>
 
 #include <set>
 #include <string>
 #include <vector>
 
 #include "base/path_service.h"
 #include "base/strings/string16.h"
 #include "base/strings/string_util.h"
 #include "base/strings/utf_string_conversions.h"
+#include "base/threading/thread_restrictions.h"
 #include "build/build_config.h"
 #include "content/browser/accessibility/accessibility_event_recorder.h"
 #include "content/browser/accessibility/accessibility_tree_formatter.h"
 #include "content/browser/accessibility/browser_accessibility.h"
 #include "content/browser/accessibility/browser_accessibility_manager.h"
 #include "content/browser/accessibility/dump_accessibility_browsertest_base.h"
 #include "content/browser/web_contents/web_contents_impl.h"
 #include "content/public/common/content_paths.h"
+#include "content/public/test/content_browser_test_utils.h"
 #include "content/shell/browser/shell.h"
 #include "content/test/accessibility_browser_test_utils.h"
 
 namespace content {
 
 typedef AccessibilityTreeFormatter::Filter Filter;
 
 // Tests that the right platform-specific accessibility events are fired
 // in response to things that happen in a web document.
 //
@@ skipping 99 matching lines @@
   printf("Initial accessibility tree (after load complete):\n");
   printf("%s\n", base::UTF16ToUTF8(initial_tree_).c_str());
   printf("\n");
   printf("Final accessibility tree after events fired:\n");
   printf("%s\n", base::UTF16ToUTF8(final_tree_).c_str());
   printf("\n");
 }
 
 void DumpAccessibilityEventsTest::RunEventTest(
     const base::FilePath::CharType* file_path) {
-  base::FilePath dir_test_data;
-  ASSERT_TRUE(PathService::Get(DIR_TEST_DATA, &dir_test_data));
-  base::FilePath test_path(dir_test_data.AppendASCII("accessibility")
-      .AppendASCII("event"));
-  ASSERT_TRUE(base::PathExists(test_path)) << test_path.LossyDisplayName();
+  base::FilePath test_path = GetTestFilePath("accessibility", "event");
+
+  {
+    base::ThreadRestrictions::ScopedAllowIO allow_io_for_test_verification;
+    ASSERT_TRUE(base::PathExists(test_path)) << test_path.LossyDisplayName();
+  }
 
   base::FilePath event_file = test_path.Append(base::FilePath(file_path));
   RunTest(event_file, "accessibility/event");
 }
 
 // TODO(dmazzoni): port these tests to run on all platforms.
 // TODO(crbug.com/617146): All tests flaky on Windows 8.
 #if /*defined(OS_WIN) ||*/ defined(OS_MACOSX)
 
 IN_PROC_BROWSER_TEST_F(DumpAccessibilityEventsTest,
@@ skipping 172 matching lines @@
 }
 
 IN_PROC_BROWSER_TEST_F(DumpAccessibilityEventsTest,
                        AccessibilityEventsTextChanged) {
   RunEventTest(FILE_PATH_LITERAL("text-changed.html"));
 }
 
 #endif  // defined(OS_WIN)
 
 }  // namespace content