Pepper: Fix texture color format in VideoDecoderShim.

The RGB pixel components are flipped in the software decoder
implementation.

Also add latency calculation to example plugin.
Flip picture vertically (it was upside down).

BUG=281689

Review URL: https://codereview.chromium.org/346543002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@278237 0039d316-1c4b-4281-b951-d872f2087c98

content/renderer/pepper/video_decoder_shim.cc

@@ -256,8 +256,8 @@ void VideoDecoderShim::DecoderImpl::OnOutputComplete(
   scoped_ptr<PendingFrame> pending_frame;
   if (!frame->end_of_stream()) {
     pending_frame.reset(new PendingFrame(decode_id_, frame->coded_size()));
-    // Convert the VideoFrame pixels to ARGB.
-    libyuv::I420ToARGB(frame->data(media::VideoFrame::kYPlane),
+    // Convert the VideoFrame pixels to ABGR to match VideoDecodeAccelerator.
+    libyuv::I420ToABGR(frame->data(media::VideoFrame::kYPlane),
                        frame->stride(media::VideoFrame::kYPlane),
                        frame->data(media::VideoFrame::kUPlane),
                        frame->stride(media::VideoFrame::kUPlane),