Move GetFileSize, NormalizeFilePath to base namespace

base/platform_file_unittest.cc

Index: base/platform_file_unittest.cc
diff --git a/base/platform_file_unittest.cc b/base/platform_file_unittest.cc
index 0da3cf083427d84bcdf010bf708b99bff1b18622..315abe54337ac1fde4e3f8af00480019b0bb8def 100644
--- a/base/platform_file_unittest.cc
+++ b/base/platform_file_unittest.cc
@@ -203,7 +203,7 @@ TEST(PlatformFile, ReadWritePlatformFile) {
 
   // Make sure the file was extended.
   int64 file_size = 0;
-  EXPECT_TRUE(file_util::GetFileSize(file_path, &file_size));
+  EXPECT_TRUE(base::GetFileSize(file_path, &file_size));
   EXPECT_EQ(kOffsetBeyondEndOfFile + kPartialWriteLength, file_size);
 
   // Make sure the file was zero-padded.
@@ -296,7 +296,7 @@ TEST(PlatformFile, TruncatePlatformFile) {
   const int kExtendedFileLength = 10;
   int64 file_size = 0;
   EXPECT_TRUE(base::TruncatePlatformFile(file, kExtendedFileLength));
-  EXPECT_TRUE(file_util::GetFileSize(file_path, &file_size));
+  EXPECT_TRUE(base::GetFileSize(file_path, &file_size));
   EXPECT_EQ(kExtendedFileLength, file_size);
 
   // Make sure the file was zero-padded.
@@ -311,7 +311,7 @@ TEST(PlatformFile, TruncatePlatformFile) {
   // Truncate the file.
   const int kTruncatedFileLength = 2;
   EXPECT_TRUE(base::TruncatePlatformFile(file, kTruncatedFileLength));
-  EXPECT_TRUE(file_util::GetFileSize(file_path, &file_size));
+  EXPECT_TRUE(base::GetFileSize(file_path, &file_size));
   EXPECT_EQ(kTruncatedFileLength, file_size);
 
   // Make sure the file was truncated.