Make sure that Clipboard operations that require dispatching...

base/file_util_unittest.cc

 // Copyright (c) 2006-2008 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 "build/build_config.h"
 
 #if defined(OS_WIN)
 #include <windows.h>
 #include <shellapi.h>
 #include <shlobj.h>
@@ skipping 966 matching lines @@
     EXPECT_EQ(kPathComponents[i].result, result);
   }
 }
 
 TEST_F(FileUtilTest, Contains) {
   FilePath data_dir;
   ASSERT_TRUE(PathService::Get(base::DIR_TEMP, &data_dir));
   data_dir = data_dir.Append(FILE_PATH_LITERAL("FilePathTest"));
 
   // Create a fresh, empty copy of this directory.
-  ASSERT_TRUE(file_util::Delete(data_dir, true));
+  if (file_util::PathExists(data_dir)) {
+    ASSERT_TRUE(file_util::Delete(data_dir, true));
+  }
   ASSERT_TRUE(file_util::CreateDirectory(data_dir));
 
   FilePath foo(data_dir.Append(FILE_PATH_LITERAL("foo")));
   FilePath bar(foo.Append(FILE_PATH_LITERAL("bar.txt")));
   FilePath baz(data_dir.Append(FILE_PATH_LITERAL("baz.txt")));
   FilePath foobar(data_dir.Append(FILE_PATH_LITERAL("foobar.txt")));
 
   // Annoyingly, the directories must actually exist in order for realpath(),
   // which Contains() relies on in posix, to work.
   ASSERT_TRUE(file_util::CreateDirectory(foo));
@@ skipping 20 matching lines @@
 #elif defined(OS_LINUX)
   EXPECT_FALSE(file_util::ContainsPath(foo,
       foo_caps.Append(FILE_PATH_LITERAL("bar.txt"))));
 #else
   // We can't really do this test on osx since the case-sensitivity of the
   // filesystem is configurable.
 #endif
 }
 
 }  // namespace