media: Add support for playback of VP8 Alpha video streams

media/filters/pipeline_integration_test.cc

Index: media/filters/pipeline_integration_test.cc
diff --git a/media/filters/pipeline_integration_test.cc b/media/filters/pipeline_integration_test.cc
index 2945db2ca2dbb7c4320584d5c9be906878b3fc77..ef5694d3b2c382fac93b3377b34df03e3e78e7a0 100644
--- a/media/filters/pipeline_integration_test.cc
+++ b/media/filters/pipeline_integration_test.cc
@@ -923,4 +923,12 @@ TEST_F(PipelineIntegrationTest, DISABLED_BasicPlayback_VP9_Opus_WebM) {
   ASSERT_TRUE(WaitUntilOnEnded());
 }
 
+// Verify that VP8 video with alpha channel can be played back.
+TEST_F(PipelineIntegrationTest, BasicPlayback_VP8A_WebM) {
+  ASSERT_TRUE(Start(GetTestDataFilePath("bear-vp8a.webm"),
+                    PIPELINE_OK));
+  Play();
+  ASSERT_TRUE(WaitUntilOnEnded());
+}
+
 }  // namespace media