Clear VideoRendererBase::current_frame_ when stopped.

media/filters/video_renderer_base_unittest.cc

Index: media/filters/video_renderer_base_unittest.cc
diff --git a/media/filters/video_renderer_base_unittest.cc b/media/filters/video_renderer_base_unittest.cc
index 01ebb53c6fa29842c318f18391677a83b59105c3..2c8a661a77c463eb43ba9da26d43501fb3ca6c23 100644
--- a/media/filters/video_renderer_base_unittest.cc
+++ b/media/filters/video_renderer_base_unittest.cc
@@ -379,6 +379,13 @@ TEST_F(VideoRendererBaseTest, GetCurrentFrame_Shutdown) {
   ExpectCurrentFrame(false);
 }
 
+// Stop() is called immediately during an error.
+TEST_F(VideoRendererBaseTest, GetCurrentFrame_Error) {
+  Initialize();
+  Stop();
+  ExpectCurrentFrame(false);
+}
+
 // Verify that shutdown can only proceed after we return the current frame.
 TEST_F(VideoRendererBaseTest, Shutdown_DuringPaint) {
   Initialize();