Move GetFileSize, NormalizeFilePath to base namespace

BUG=
R=viettrungluu@chromium.org

Review URL: https://codereview.chromium.org/102873002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@238722 0039d316-1c4b-4281-b951-d872f2087c98


CrOS-Libchrome-Original-Commit: 5628570f1bef7e3fd152bcff189fc13d3fbf5c9b
diff --git a/base/files/file_unittest.cc b/base/files/file_unittest.cc
index 178f867..b2e855d 100644
--- a/base/files/file_unittest.cc
+++ b/base/files/file_unittest.cc
@@ -158,7 +158,7 @@
 
   // Make sure the file was extended.
   int64 file_size = 0;
-  EXPECT_TRUE(file_util::GetFileSize(file_path, &file_size));
+  EXPECT_TRUE(GetFileSize(file_path, &file_size));
   EXPECT_EQ(kOffsetBeyondEndOfFile + kPartialWriteLength, file_size);
 
   // Make sure the file was zero-padded.
@@ -240,7 +240,7 @@
   const int kExtendedFileLength = 10;
   int64 file_size = 0;
   EXPECT_TRUE(file.Truncate(kExtendedFileLength));
-  EXPECT_TRUE(file_util::GetFileSize(file_path, &file_size));
+  EXPECT_TRUE(GetFileSize(file_path, &file_size));
   EXPECT_EQ(kExtendedFileLength, file_size);
 
   // Make sure the file was zero-padded.
@@ -255,7 +255,7 @@
   // Truncate the file.
   const int kTruncatedFileLength = 2;
   EXPECT_TRUE(file.Truncate(kTruncatedFileLength));
-  EXPECT_TRUE(file_util::GetFileSize(file_path, &file_size));
+  EXPECT_TRUE(GetFileSize(file_path, &file_size));
   EXPECT_EQ(kTruncatedFileLength, file_size);
 
   // Make sure the file was truncated.