Don't use $USER for Local Login check

remoting/base/util.h

Index: remoting/base/util.h
diff --git a/remoting/base/util.h b/remoting/base/util.h
index e6abe0fa98c54441170e8582e8586e8b9fe620b2..7c5351b6979ccddb61f4225867028a79d0863207 100644
--- a/remoting/base/util.h
+++ b/remoting/base/util.h
@@ -92,6 +92,13 @@ std::string ReplaceCrLfByLf(const std::string& in);
 // Checks if the given string is a valid UTF-8 string.
 bool StringIsUtf8(const char* data, size_t length);
 
+// Returns true if GetUsername() is implemented on this platform.
+bool CanGetUsername();

[Wez, 2013/03/29 17:27:57]

Semantically there's no difference between this not being implemented, and us
not being able to fetch the name due to an error, so please fold this case into
GetUsername and adjust the logic in the Me2Me host.

[Lambros, 2013/03/29 19:30:22]

Done.

+
+// Returns the username associated with this process, or the empty string on
+// error.
+std::string GetUsername();
+
 }  // namespace remoting
 
 #endif  // REMOTING_BASE_UTIL_H_