Use SNAPSHOT sync mode for LocalSync

chrome/browser/sync_file_system/local/local_file_change_tracker_unittest.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 "chrome/browser/sync_file_system/local/local_file_change_tracker.h"
 
 #include <deque>
 #include <set>
 
 #include "base/basictypes.h"
@@ skipping 25 matching lines @@
   LocalFileChangeTrackerTest()
       : message_loop_(base::MessageLoop::TYPE_IO),
         file_system_(GURL("http://example.com"),
                      base::MessageLoopProxy::current().get(),
                      base::MessageLoopProxy::current().get()) {}
 
   virtual void SetUp() OVERRIDE {
     file_system_.SetUp();
 
     sync_context_ =
-        new LocalFileSyncContext(base::MessageLoopProxy::current().get(),
+        new LocalFileSyncContext(base::FilePath(),
+                                 base::MessageLoopProxy::current().get(),
                                  base::MessageLoopProxy::current().get());
     ASSERT_EQ(
         sync_file_system::SYNC_STATUS_OK,
         file_system_.MaybeInitializeFileSystemContext(sync_context_.get()));
   }
 
   virtual void TearDown() OVERRIDE {
     if (sync_context_.get())
       sync_context_->ShutdownOnUIThread();
     sync_context_ = NULL;
@@ skipping 537 matching lines @@
   ASSERT_EQ(2U, urls_to_process.size());
 
   // The exact order of recursive removal cannot be determined.
   EXPECT_TRUE(URL(kPath1) == urls_to_process[0] ||
               URL(kPath2) == urls_to_process[0]);
   EXPECT_TRUE(URL(kPath1) == urls_to_process[1] ||
               URL(kPath2) == urls_to_process[1]);
 }
 
 }  // namespace sync_file_system