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

sql/test/test_helpers.cc

 // Copyright 2013 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 "sql/test/test_helpers.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <memory>
 #include <string>
 
 #include "base/files/file_util.h"
 #include "base/files/scoped_file.h"
+#include "base/threading/thread_restrictions.h"
 #include "sql/connection.h"
 #include "sql/statement.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace {
 
 size_t CountSQLItemsOfType(sql::Connection* db, const char* type) {
   const char kTypeSQL[] = "SELECT COUNT(*) FROM sqlite_master WHERE type = ?";
   sql::Statement s(db->GetUniqueStatement(kTypeSQL));
   s.BindCString(0, type);
@@ skipping 68 matching lines @@
 
   if (0 != fseek(file.get(), 0, SEEK_SET))
     return false;
   if (1u != fwrite(header, sizeof(header), 1, file.get()))
     return false;
 
   return true;
 }
 
 bool CorruptSizeInHeaderWithLock(const base::FilePath& db_path) {
+  base::ThreadRestrictions::ScopedAllowIO allow_io;
   sql::Connection db;
   if (!db.Open(db_path))
     return false;
 
   // Prevent anyone else from using the database.  The transaction is
   // rolled back when |db| is destroyed.
   if (!db.Execute("BEGIN EXCLUSIVE"))
     return false;
 
   return CorruptSizeInHeader(db_path);
@@ skipping 175 matching lines @@
       if (i > 0)
         ret += column_sep;
       ret += s.ColumnString(i);
     }
   }
   return ret;
 }
 
 }  // namespace test
 }  // namespace sql