metrics: fix memory leaks in unittest.
This fixes the memory leaks exposed in unittest.
BUG=chromium:408309
TEST=The memory leak related to |sender_| is gone.
Change-Id: I92970d0560f6ccd1ccd7f5022ece8cc5eba4a674
Reviewed-on: https://chromium-review.googlesource.com/214578
Reviewed-by: Yunlian Jiang <yunlian@chromium.org>
Tested-by: Yunlian Jiang <yunlian@chromium.org>
Commit-Queue: Yunlian Jiang <yunlian@chromium.org>
diff --git a/metrics/uploader/sender.h b/metrics/uploader/sender.h
index 70d29cb..5211834 100644
--- a/metrics/uploader/sender.h
+++ b/metrics/uploader/sender.h
@@ -10,6 +10,7 @@
// Abstract class for a Sender that uploads a metrics message.
class Sender {
public:
+ virtual ~Sender() {}
// Sends a message |content| with its sha1 hash |hash|
virtual bool Send(const std::string& content, const std::string& hash) = 0;
};