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

cloud_print/service/service_state.cc

Index: cloud_print/service/service_state.cc
diff --git a/cloud_print/service/service_state.cc b/cloud_print/service/service_state.cc
index 0c30be6b49f0bd52d6d506bdac8fdff5934c248d..5b97d020de7e52d18353919f1bf0569ddbfde57d 100644
--- a/cloud_print/service/service_state.cc
+++ b/cloud_print/service/service_state.cc
@@ -64,7 +64,7 @@ class ServiceStateURLRequestDelegate : public net::URLRequest::Delegate {
     const int kBufSize = 100000;
     scoped_refptr<net::IOBuffer> buf(new net::IOBuffer(kBufSize));
     int num_bytes = 0;
-    while (request->Read(buf, kBufSize, &num_bytes)) {
+    while (request->Read(buf.get(), kBufSize, &num_bytes)) {
       data_.append(buf->data(), buf->data() + num_bytes);
     }
   }