Remove implicit conversions from scoped_refptr to T* in printing/

printing/backend/print_backend_win.cc

Index: printing/backend/print_backend_win.cc
diff --git a/printing/backend/print_backend_win.cc b/printing/backend/print_backend_win.cc
index 0f5d0964c050933570169a60dba4a766845e6175..a95c98be4235a79cb26f67f0bc5b3f814bda62a3 100644
--- a/printing/backend/print_backend_win.cc
+++ b/printing/backend/print_backend_win.cc
@@ -304,12 +304,10 @@ bool PrintBackendWin::GetPrinterCapsAndDefaults(
     hr = CreateStreamOnHGlobal(NULL, TRUE,
                                print_capabilities_stream.Receive());
     DCHECK(SUCCEEDED(hr));
-    if (print_capabilities_stream) {
+    if (print_capabilities_stream.get()) {
       base::win::ScopedBstr error;
-      hr = XPSModule::GetPrintCapabilities(provider,
-                                           NULL,
-                                           print_capabilities_stream,
-                                           error.Receive());
+      hr = XPSModule::GetPrintCapabilities(
+          provider, NULL, print_capabilities_stream.get(), error.Receive());
       DCHECK(SUCCEEDED(hr));
       if (FAILED(hr)) {
         return false;
@@ -329,10 +327,11 @@ bool PrintBackendWin::GetPrinterCapsAndDefaults(
       hr = CreateStreamOnHGlobal(NULL, TRUE,
                                  printer_defaults_stream.Receive());
       DCHECK(SUCCEEDED(hr));
-      if (printer_defaults_stream) {
+      if (printer_defaults_stream.get()) {
         DWORD dm_size = devmode_out->dmSize + devmode_out->dmDriverExtra;
-        hr = XPSModule::ConvertDevModeToPrintTicket(provider, dm_size,
-            devmode_out.get(), kPTJobScope, printer_defaults_stream);
+        hr = XPSModule::ConvertDevModeToPrintTicket(
+            provider, dm_size, devmode_out.get(), kPTJobScope,
+            printer_defaults_stream.get());
         DCHECK(SUCCEEDED(hr));
         if (SUCCEEDED(hr)) {
           hr = StreamOnHGlobalToString(printer_defaults_stream.get(),