Add FilePath::FromUTF8Unsafe() and FilePath::AsUTF8Unsafe().

base/file_path.cc

Index: base/file_path.cc
diff --git a/base/file_path.cc b/base/file_path.cc
index 35361bef7594c5e2223343d46d4ec745edec3675..1d4efe7cac4c5a49b404108887f747fbd770626b 100644
--- a/base/file_path.cc
+++ b/base/file_path.cc
@@ -527,6 +527,10 @@ std::string FilePath::MaybeAsASCII() const {
   return "";
 }
 
+std::string FilePath::AsUTF8() const {
+  return WideToUTF8(base::SysNativeMBToWide(value()));
+}
+
 // The *Hack functions are temporary while we fix the remainder of the code.
 // Remember to remove the #includes at the top when you remove these.
 
@@ -534,6 +538,12 @@ std::string FilePath::MaybeAsASCII() const {
 FilePath FilePath::FromWStringHack(const std::wstring& wstring) {
   return FilePath(base::SysWideToNativeMB(wstring));
 }
+
+// static
+FilePath FilePath::FromUTF8(const std::string& utf8) {
+  return FilePath(base::SysWideToNativeMB(UTF8ToWide(utf8)));
+}
+
 #elif defined(OS_WIN)
 string16 FilePath::LossyDisplayName() const {
   return path_;
@@ -545,10 +555,19 @@ std::string FilePath::MaybeAsASCII() const {
   return "";
 }
 
+std::string FilePath::AsUTF8() const {
+  return WideToUTF8(value());
+}
+
 // static
 FilePath FilePath::FromWStringHack(const std::wstring& wstring) {
   return FilePath(wstring);
 }
+
+// static
+FilePath FilePath::FromUTF8(const std::string& utf8) {
+  return FilePath(UTF8ToWide(utf8));
+}
 #endif
 
 void FilePath::WriteToPickle(Pickle* pickle) {