Move StringToUpperASCII and LowerCaseEqualsASCII to the base namespace

net/websockets/websocket_basic_handshake_stream.cc

Index: net/websockets/websocket_basic_handshake_stream.cc
diff --git a/net/websockets/websocket_basic_handshake_stream.cc b/net/websockets/websocket_basic_handshake_stream.cc
index 2eee942478e92be827f9163c76c96a0d2ee9f947..582f39f3fea007295be9c10478ee52ae277f6650 100644
--- a/net/websockets/websocket_basic_handshake_stream.cc
+++ b/net/websockets/websocket_basic_handshake_stream.cc
@@ -134,7 +134,7 @@ bool ValidateUpgrade(const HttpResponseHeaders* headers,
     return false;
   }
 
-  if (!LowerCaseEqualsASCII(value, websockets::kWebSocketLowercase)) {
+  if (!base::LowerCaseEqualsASCII(value, websockets::kWebSocketLowercase)) {
     *failure_message =
         "'Upgrade' header value is not 'WebSocket': " + value;
     return false;