Update Linux to use scoped_refptr<T>::get() rather than implicit "operator T*"

net/spdy/spdy_http_stream_unittest.cc

Index: net/spdy/spdy_http_stream_unittest.cc
diff --git a/net/spdy/spdy_http_stream_unittest.cc b/net/spdy/spdy_http_stream_unittest.cc
index 5c2948495b6c152d3a095ad915a91969f800917c..2514bc9ab2ceedae1937f146ea709838814a2762 100644
--- a/net/spdy/spdy_http_stream_unittest.cc
+++ b/net/spdy/spdy_http_stream_unittest.cc
@@ -185,7 +185,7 @@ TEST_P(SpdyHttpStreamTest, GetUploadProgressBeforeInitialization) {
                      kPrivacyModeDisabled);
   EXPECT_EQ(OK, InitSession(reads, arraysize(reads), NULL, 0, host_port_pair));
 
-  SpdyHttpStream stream(session_, false);
+  SpdyHttpStream stream(session_.get(), false);
   UploadProgress progress = stream.GetUploadProgress();
   EXPECT_EQ(0u, progress.size());
   EXPECT_EQ(0u, progress.position());