Port more of url_request_unittest.cc....

base/file_util.h

Index: base/file_util.h
===================================================================
--- base/file_util.h	(revision 4466)
+++ base/file_util.h	(working copy)
@@ -267,6 +267,8 @@
 bool CreateDirectory(const std::wstring& full_path);
 
 // Returns the file size. Returns true on success.
+bool GetFileSize(const FilePath& file_path, int64* file_size);
+// Deprecated temporary compatibility function.
 bool GetFileSize(const std::wstring& file_path, int64* file_size);
 
 // Used to hold information about a given file path.  See GetFileInfo below.
@@ -281,8 +283,11 @@
 };
 
 // Returns information about the given file path.
+bool GetFileInfo(const FilePath& file_path, FileInfo* info);
+// Deprecated temporary compatibility function.
 bool GetFileInfo(const std::wstring& file_path, FileInfo* info);
 
+
 // Wrapper for fopen-like calls. Returns non-NULL FILE* on success.
 FILE* OpenFile(const FilePath& filename, const char* mode);
 // Deprecated temporary compatibility functions.