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

chrome/browser/nacl_host/test/nacl_gdb_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 <memory>
 
 #include "base/command_line.h"
 #include "base/environment.h"
 #include "base/files/file_util.h"
 #include "base/path_service.h"
+#include "base/threading/thread_restrictions.h"
 #include "build/build_config.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/test/ppapi/ppapi_test.h"
 #include "components/nacl/common/nacl_switches.h"
 
 #if defined(OS_WIN)
 #include "base/win/windows_version.h"
 #endif
 
 static const base::FilePath::CharType kMockNaClGdb[] =
@@ skipping 28 matching lines @@
     // space is not reserved. We can't reserve 1Gb of space because
     // base::LaunchProcess doesn't support creating suspended processes. We need
     // to either add suspended process support to base::LaunchProcess or use
     // Win API.
 #if defined(OS_WIN)
     if (base::win::OSInfo::GetInstance()->wow64_status() ==
       base::win::OSInfo::WOW64_DISABLED) {
         return;
     }
 #endif
+    base::ThreadRestrictions::ScopedAllowIO allow_io;
     EXPECT_TRUE(base::CreateTemporaryFile(&mock_nacl_gdb_file));
     env->SetVar("MOCK_NACL_GDB", mock_nacl_gdb_file.AsUTF8Unsafe());
     RunTestViaHTTP(test_name);
     env->UnSetVar("MOCK_NACL_GDB");
 
     EXPECT_TRUE(base::ReadFileToString(mock_nacl_gdb_file, &content));
     EXPECT_STREQ("PASS", content.c_str());
     EXPECT_TRUE(base::DeleteFile(mock_nacl_gdb_file, false));
 
     content.clear();
     EXPECT_TRUE(base::ReadFileToString(script_, &content));
     EXPECT_STREQ("PASS", content.c_str());
     EXPECT_TRUE(base::DeleteFile(script_, false));
   }
 
  private:
   base::FilePath script_;
 };
 
 // Fails on the ASAN test bot. See http://crbug.com/122219
 #if defined(ADDRESS_SANITIZER)
 #define MAYBE_Empty DISABLED_Empty
 #else
 #define MAYBE_Empty Empty
 #endif
 IN_PROC_BROWSER_TEST_F(NaClGdbTest, MAYBE_Empty) {
   RunWithNaClGdb("Empty");
 }