Fix integration tests in src/chrome and src/extensions so that we can turn on IO thread checks wi...

chrome/browser/browsing_data/browsing_data_local_storage_helper_browsertest.cc

 // Copyright (c) 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 "chrome/browser/browsing_data/browsing_data_local_storage_helper.h"
 
 #include <stddef.h>
 
 #include <string>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/callback.h"
 #include "base/files/file_enumerator.h"
 #include "base/files/file_path.h"
 #include "base/files/file_util.h"
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/test/thread_test_helper.h"
 #include "base/threading/sequenced_worker_pool.h"
+#include "base/threading/thread_restrictions.h"
 #include "chrome/browser/browsing_data/browsing_data_helper_browsertest.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/test/base/in_process_browser_test.h"
 #include "content/public/browser/dom_storage_context.h"
 #include "content/public/test/test_utils.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 using content::BrowserContext;
 using content::BrowserThread;
@@ skipping 15 matching lines @@
 const base::FilePath::CharType kTestFileInvalid[] =
     FILE_PATH_LITERAL("http_www.google.com_localstorage_0.foo");
 
 // This is only here to test that extension state is not listed by the helper.
 const base::FilePath::CharType kTestFileExtension[] = FILE_PATH_LITERAL(
     "chrome-extension_behllobkkfkfnphdnhnkndlbkcpglgmj_0.localstorage");
 
 class BrowsingDataLocalStorageHelperTest : public InProcessBrowserTest {
  protected:
   void CreateLocalStorageFilesForTest() {
+    base::ThreadRestrictions::ScopedAllowIO allow_io;
     // Note: This helper depends on details of how the dom_storage library
     // stores data in the host file system.
     base::FilePath storage_path = GetLocalStoragePathForTestingProfile();
     base::CreateDirectory(storage_path);
     const base::FilePath::CharType* kFilesToCreate[] = {
         kTestFile0, kTestFile1, kTestFileInvalid, kTestFileExtension
     };
     for (size_t i = 0; i < arraysize(kFilesToCreate); ++i) {
       base::FilePath file_path = storage_path.Append(kFilesToCreate[i]);
       base::WriteFile(file_path, nullptr, 0);
@@ skipping 54 matching lines @@
 }
 
 IN_PROC_BROWSER_TEST_F(BrowsingDataLocalStorageHelperTest, DeleteSingleFile) {
   scoped_refptr<BrowsingDataLocalStorageHelper> local_storage_helper(
       new BrowsingDataLocalStorageHelper(browser()->profile()));
   CreateLocalStorageFilesForTest();
   local_storage_helper->DeleteOrigin(GURL(kOriginOfTestFile0));
   content::RunAllBlockingPoolTasksUntilIdle();
 
   // Ensure the file has been deleted.
+  base::ThreadRestrictions::ScopedAllowIO allow_io;
   base::FileEnumerator file_enumerator(
       GetLocalStoragePathForTestingProfile(),
       false,
       base::FileEnumerator::FILES);
   int num_files = 0;
   for (base::FilePath file_path = file_enumerator.Next();
        !file_path.empty();
        file_path = file_enumerator.Next()) {
     ASSERT_FALSE(base::FilePath(kTestFile0) == file_path.BaseName());
     ++num_files;
@@ skipping 40 matching lines @@
       base::Bind(&TestCompletionCallback::callback,
                  base::Unretained(&callback)));
 
   std::list<BrowsingDataLocalStorageHelper::LocalStorageInfo> result =
       callback.result();
 
   ASSERT_EQ(1u, result.size());
   EXPECT_EQ(origin, result.begin()->origin_url);
 }
 }  // namespace