Remove memset from VideoFrame and mark buffer as unpoisoned

media/base/video_frame_unittest.cc

Index: media/base/video_frame_unittest.cc
diff --git a/media/base/video_frame_unittest.cc b/media/base/video_frame_unittest.cc
index 24b8a2b4b5d4d23ddbae47adbd96e63def52356a..2a1bb946c88bfd89b775a9c28c6e7e650b96d169 100644
--- a/media/base/video_frame_unittest.cc
+++ b/media/base/video_frame_unittest.cc
@@ -331,7 +331,7 @@ TEST(VideoFrame,
   EXPECT_EQ(release_sync_point, called_sync_point);
 }
 
-TEST(VideoFrame, ZeroInitialized) {
+TEST(VideoFrame, InitializedAndZeroed) {
   const int kWidth = 64;
   const int kHeight = 48;
   const base::TimeDelta kTimestamp = base::TimeDelta::FromMicroseconds(1337);
@@ -339,6 +339,7 @@ TEST(VideoFrame, ZeroInitialized) {
   gfx::Size size(kWidth, kHeight);
   scoped_refptr<media::VideoFrame> frame = VideoFrame::CreateFrame(
       media::VideoFrame::YV12, size, gfx::Rect(size), size, kTimestamp);
+  memset(frame->data(0), 0, VideoFrame::AlignedAllocationSize(frame));
 
   for (size_t i = 0; i < VideoFrame::NumPlanes(frame->format()); ++i)
     EXPECT_EQ(0, frame->data(i)[0]);