Convert base::MemoryMappedFile to use File instead of PlatformFile.

ui/base/resource/data_pack_unittest.cc

 // Copyright (c) 2012 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 "base/file_util.h"
+#include "base/files/file.h"
 #include "base/files/file_path.h"
 #include "base/files/scoped_temp_dir.h"
 #include "base/path_service.h"
 #include "base/strings/string_piece.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "ui/base/resource/data_pack.h"
 
 namespace ui {
 
 class DataPackTest
@@ skipping 39 matching lines @@
 
 TEST(DataPackTest, LoadFromFile) {
   base::ScopedTempDir dir;
   ASSERT_TRUE(dir.CreateUniqueTempDir());
   base::FilePath data_path = dir.path().Append(FILE_PATH_LITERAL("sample.pak"));
 
   // Dump contents into the pak file.
   ASSERT_EQ(file_util::WriteFile(data_path, kSamplePakContents, kSamplePakSize),
             static_cast<int>(kSamplePakSize));
 
-  bool created = false;
-  base::PlatformFileError error_code = base::PLATFORM_FILE_OK;
-  base::PlatformFile file = base::CreatePlatformFile(
-      data_path, base::PLATFORM_FILE_OPEN | base::PLATFORM_FILE_READ,
-      &created, &error_code);
+  base::File file(data_path, base::File::FLAG_OPEN | base::File::FLAG_READ);
+  ASSERT_TRUE(file.IsValid());
 
   // Load the file through the data pack API.
   DataPack pack(SCALE_FACTOR_100P);
-  ASSERT_TRUE(pack.LoadFromFile(file));
+  ASSERT_TRUE(pack.LoadFromFile(file.Pass()));
 
   base::StringPiece data;
   ASSERT_TRUE(pack.HasResource(4));
   ASSERT_TRUE(pack.GetStringPiece(4, &data));
   EXPECT_EQ("this is id 4", data);
   ASSERT_TRUE(pack.HasResource(6));
   ASSERT_TRUE(pack.GetStringPiece(6, &data));
   EXPECT_EQ("this is id 6", data);
 
   // Try reading zero-length data blobs, just in case.
   ASSERT_TRUE(pack.GetStringPiece(1, &data));
   EXPECT_EQ(0U, data.length());
   ASSERT_TRUE(pack.GetStringPiece(10, &data));
   EXPECT_EQ(0U, data.length());
 
   // Try looking up an invalid key.
   ASSERT_FALSE(pack.HasResource(140));
   ASSERT_FALSE(pack.GetStringPiece(140, &data));
-
-  base::ClosePlatformFile(file);
 }
 
 INSTANTIATE_TEST_CASE_P(WriteBINARY, DataPackTest, ::testing::Values(
     DataPack::BINARY));
 INSTANTIATE_TEST_CASE_P(WriteUTF8, DataPackTest, ::testing::Values(
     DataPack::UTF8));
 INSTANTIATE_TEST_CASE_P(WriteUTF16, DataPackTest, ::testing::Values(
     DataPack::UTF16));
 
 TEST(DataPackTest, LoadFileWithTruncatedHeader) {
@@ skipping 37 matching lines @@
   EXPECT_EQ(two, data);
   ASSERT_TRUE(pack.GetStringPiece(3, &data));
   EXPECT_EQ(three, data);
   ASSERT_TRUE(pack.GetStringPiece(4, &data));
   EXPECT_EQ(four, data);
   ASSERT_TRUE(pack.GetStringPiece(15, &data));
   EXPECT_EQ(fifteen, data);
 }
 
 }  // namespace ui