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

chrome/browser/sync/test/integration/sync_extension_helper.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/sync/test/integration/sync_extension_helper.h"
 
 #include <list>
 #include <memory>
 #include <utility>
 
 #include "base/files/file_path.h"
 #include "base/files/file_util.h"
 #include "base/guid.h"
 #include "base/logging.h"
 #include "base/memory/ptr_util.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/string_util.h"
+#include "base/threading/thread_restrictions.h"
 #include "base/values.h"
 #include "chrome/browser/extensions/extension_service.h"
 #include "chrome/browser/extensions/extension_util.h"
 #include "chrome/browser/extensions/pending_extension_info.h"
 #include "chrome/browser/extensions/pending_extension_manager.h"
 #include "chrome/browser/extensions/signin/gaia_auth_extension_loader.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/sync/test/integration/sync_datatype_helper.h"
 #include "chrome/browser/sync/test/integration/sync_test.h"
 #include "components/crx_file/id_util.h"
@@ skipping 49 matching lines @@
   }
   if (test->use_verifier()) {
     SetupProfile(test->verifier());
   }
 
   setup_completed_ = true;
 }
 
 std::string SyncExtensionHelper::InstallExtension(
     Profile* profile, const std::string& name, Manifest::Type type) {
+  base::ThreadRestrictions::ScopedAllowIO allow_io;
   scoped_refptr<Extension> extension = GetExtension(profile, name, type);
   if (!extension.get()) {
     NOTREACHED() << "Could not install extension " << name;
     return std::string();
   }
   extensions::ExtensionSystem::Get(profile)
       ->extension_service()
       ->OnExtensionInstalled(extension.get(),
                              syncer::StringOrdinal(),
                              extensions::kInstallFlagInstallImmediately);
@@ skipping 336 matching lines @@
     EXPECT_EQ(expected_id, extension->id());
     return nullptr;
   }
   DVLOG(2) << "created extension with name = "
            << name << ", id = " << expected_id;
   (it->second)[name] = extension;
   id_to_name_[expected_id] = name;
   id_to_type_[expected_id] = type;
   return extension;
 }