Move and rename FdopenPlatformFile to file_util

base/file_util_unittest.cc

Index: base/file_util_unittest.cc
diff --git a/base/file_util_unittest.cc b/base/file_util_unittest.cc
index 83f211f5e95218e3acf184d4b5a0d4766bacdfff..239563d304e15f0ee2b78b1aa357d16cb89bbd09 100644
--- a/base/file_util_unittest.cc
+++ b/base/file_util_unittest.cc
@@ -1685,6 +1685,21 @@ TEST_F(FileUtilTest, CreateAndOpenTemporaryFileTest) {
   }
 }
 
+TEST_F(FileUtilTest, FileToFILE) {
+  File file;
+  FILE* stream = FileToFILE(file.Pass(), "w");
+  EXPECT_FALSE(stream);
+
+  FilePath file_name = temp_dir_.path().Append(FPL("The file.txt"));
+  file = File(file_name, File::FLAG_CREATE | File::FLAG_WRITE);
+  EXPECT_TRUE(file.IsValid());
+
+  stream = FileToFILE(file.Pass(), "w");
+  EXPECT_TRUE(stream);
+  EXPECT_FALSE(file.IsValid());
+  EXPECT_TRUE(CloseFile(stream));
+}
+
 TEST_F(FileUtilTest, CreateNewTempDirectoryTest) {
   FilePath temp_dir;
   ASSERT_TRUE(CreateNewTempDirectory(FilePath::StringType(), &temp_dir));