[WIP] make GURL::path() return a StringPiece

chrome/test/chromedriver/net/websocket.cc

Index: chrome/test/chromedriver/net/websocket.cc
diff --git a/chrome/test/chromedriver/net/websocket.cc b/chrome/test/chromedriver/net/websocket.cc
index 3f43f483784bcf5f666b9535fee49b5dec47a7db..f1a1692ed4ef6c79e5fad9f39695c3a1e1a22909 100644
--- a/chrome/test/chromedriver/net/websocket.cc
+++ b/chrome/test/chromedriver/net/websocket.cc
@@ -144,9 +144,7 @@ void WebSocket::OnSocketConnect(int code) {
       "Pragma: no-cache\r\n"
       "Cache-Control: no-cache\r\n"
       "\r\n",
-      url_.path().c_str(),
-      url_.host().c_str(),
-      sec_key_.c_str());
+      url_.path().as_string().c_str(), url_.host().c_str(), sec_key_.c_str());
   Write(handshake);
   Read();
 }