Remove a superfluous qualifier on an inline method.

webrtc/base/stringutils.h

Index: webrtc/base/stringutils.h
diff --git a/webrtc/base/stringutils.h b/webrtc/base/stringutils.h
index 25990e0af46aa62f7be406c6ac42ce761f5d07a1..5a6f42a0631b863c0041b51436be2d56a329a730 100644
--- a/webrtc/base/stringutils.h
+++ b/webrtc/base/stringutils.h
@@ -292,7 +292,7 @@ struct Traits<char> {
 template<>
 struct Traits<wchar_t> {
   typedef std::wstring string;
-  inline static const wchar_t* Traits<wchar_t>::empty_str() { return L""; }
+  inline static const wchar_t* empty_str() { return L""; }
 };
 
 #endif  // WEBRTC_WIN