media: Add missing semicolons to TRACE_EVENTs

Chrome is about to switch to the TRACE_EVENT macro implementation
provided by Perfetto. The new implementation requires trace event
statements to be terminated by semicolons, so this patch modifies the
codebase to add semicolons where they were previously left out.

No functional changes.

Bug: 1006541
Change-Id: I87ee1f6d2a3bdf4c05967fb62ef751120d0cbaa5
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2629517
Commit-Queue: Sami Kyöstilä <skyostil@chromium.org>
Commit-Queue: Thomas Guilbert <tguilbert@chromium.org>
Auto-Submit: Sami Kyöstilä <skyostil@chromium.org>
Reviewed-by: Thomas Guilbert <tguilbert@chromium.org>
Cr-Commit-Position: refs/heads/master@{#843736}

media/audio/audio_output_device.cc

@@ -379,7 +379,7 @@ void AudioOutputDevice::OnStreamCreated(
     base::UnsafeSharedMemoryRegion shared_memory_region,
     base::SyncSocket::ScopedHandle socket_handle,
     bool playing_automatically) {
-  TRACE_EVENT0("audio", "AudioOutputDevice::OnStreamCreated")
+  TRACE_EVENT0("audio", "AudioOutputDevice::OnStreamCreated");
 
   DCHECK(io_task_runner_->BelongsToCurrentThread());
   DCHECK(shared_memory_region.IsValid());

media/mojo/services/mojo_video_decoder_service.cc

@@ -339,7 +339,7 @@ void MojoVideoDecoderService::OnDecoderOutput(scoped_refptr<VideoFrame> frame) {
   DCHECK(client_);
   DCHECK(decoder_);
   TRACE_EVENT1("media", "MojoVideoDecoderService::OnDecoderOutput",
-               "video_frame", frame->AsHumanReadableString())
+               "video_frame", frame->AsHumanReadableString());
 
   // All MojoVideoDecoder-based decoders are hardware decoders. If you're the
   // first to implement an out-of-process decoder that is not power efficent,