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-rw-r--r--printing/printing_context_win.cc1
1 files changed, 1 insertions, 0 deletions
diff --git a/printing/printing_context_win.cc b/printing/printing_context_win.cc
index 83ddfd4..94108cd 100644
--- a/printing/printing_context_win.cc
+++ b/printing/printing_context_win.cc
@@ -330,6 +330,7 @@ PrintingContext::Result PrintingContext::DocumentDone() {
if (abort_printing_)
return CANCEL;
DCHECK(in_print_job_);
+ DCHECK(context_);
// Inform the driver that document has ended.
if (EndDoc(context_) <= 0)