On windows filepaths need \\?\ prefix to allow extended file path names. Fix ...

webkit/fileapi/file_system_operation_unittest.cc

Index: webkit/fileapi/file_system_operation_unittest.cc
===================================================================
--- webkit/fileapi/file_system_operation_unittest.cc	(revision 67172)
+++ webkit/fileapi/file_system_operation_unittest.cc	(working copy)
@@ -463,6 +463,34 @@
   EXPECT_EQ(request_id_, mock_dispatcher_->request_id());
 }
 
+TEST_F(FileSystemOperationTest, TestCreateVeryLongName) {
+  ScopedTempDir dir;
+  ASSERT_TRUE(dir.CreateUniqueTempDir());
+
+#if defined(OS_WIN)
+  FilePath dir_path(FILE_PATH_LITERAL("\\\\?\\") + dir.path().value());
+#else
+  FilePath dir_path = dir.path();
+#endif
+
+  // TODO(kkanetkar): Once each platform's limitations have been enforced
+  // consider that in this test. Currently this test is for
+  // windows primarily.
+  FilePath dir1 = dir_path.AppendASCII(
+      "012345678901234567890123456789012345678901234567890123456789"
+      "012345678901234567890123456789012345678901234567890123456789"
+      "0123456789012345678901234567890123456789");
+  FilePath file = dir1.AppendASCII(
+      "012345678901234567890123456789012345678901234567890123456789"
+      "012345678901234567890123456789012345678901234567890123456789"
+      "0123456789012345678901234567890123456789");
+  operation()->CreateDirectory(dir1, false, true);
+  MessageLoop::current()->RunAllPending();
+  operation()->CreateFile(file, true);
+  MessageLoop::current()->RunAllPending();
+  EXPECT_TRUE(file_util::PathExists(file));
+}
+
 TEST_F(FileSystemOperationTest, TestCreateFileSuccessFileExists) {
   // Already existing file and exclusive false.
   ScopedTempDir dir;