Implement stream based cross file system copy.

webkit/browser/fileapi/dragged_file_util_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 <map>
 #include <queue>
 #include <set>
 #include <string>
 #include <vector>
 
@@ skipping 71 matching lines @@
   return file_system_context->CreateCrackedFileSystemURL(
       other_root.origin(),
       other_root.mount_type(),
       other_root.virtual_path().Append(GetRelativeVirtualPath(root, url)));
 }
 
 }  // namespace
 
 class DraggedFileUtilTest : public testing::Test {
  public:
-  DraggedFileUtilTest() {}
+  DraggedFileUtilTest()
+      : message_loop_(base::MessageLoop::TYPE_IO) {}
 
   virtual void SetUp() {
     ASSERT_TRUE(data_dir_.CreateUniqueTempDir());
     ASSERT_TRUE(partition_dir_.CreateUniqueTempDir());
     file_util_.reset(new DraggedFileUtil());
 
     // Register the files/directories of RegularTestCases (with random
     // root paths) as dropped files.
     SimulateDropFiles();
 
@@ skipping 433 matching lines @@
     EXPECT_EQ(base::PLATFORM_FILE_OK,
               file_util()->Truncate(GetOperationContext().get(), url, 999));
     ASSERT_EQ(base::PLATFORM_FILE_OK,
               file_util()->GetFileInfo(GetOperationContext().get(), url,
                                        &info, &platform_path));
     EXPECT_EQ(999, info.size);
   }
 }
 
 }  // namespace fileapi