[DO NOT COMMIT] Initial MediaPlayerRenderer plumbing and basic features

media/base/android/url_demuxer_stream_provider.cc

+// Copyright 2016 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "media/base/android/url_demuxer_stream_provider.h"
+
+#include "base/memory/ptr_util.h"
+#include "media/base/android/url_demuxer_stream.h"
+
+namespace media {
+
+UrlDemuxerStreamProvider::UrlDemuxerStreamProvider(const GURL& url)
+    : url_(url), stream_(new UrlDemuxerStream(url_)) {}
+
+UrlDemuxerStreamProvider::~UrlDemuxerStreamProvider() {}
+
+DemuxerStream* UrlDemuxerStreamProvider::GetStream(DemuxerStream::Type type) {
+  if (type == DemuxerStream::Type::URL)
+    return stream_.get();
+
+  return NULL;
+}
+
+std::string UrlDemuxerStreamProvider::GetDisplayName() const {
+  return "UrlDemuxerStreamProvider";
+}
+
+void UrlDemuxerStreamProvider::Initialize(DemuxerHost* host,
+                                          const PipelineStatusCB& status_cb,
+                                          bool enable_text_tracks) {
+  DVLOG(1) << __FUNCTION__;
+  status_cb.Run(PIPELINE_OK);
+}
+
+void UrlDemuxerStreamProvider::StartWaitingForSeek(base::TimeDelta seek_time) {
+  DVLOG(1) << __FUNCTION__;
+}
+
+void UrlDemuxerStreamProvider::CancelPendingSeek(base::TimeDelta seek_time) {
+  DVLOG(1) << __FUNCTION__;
+}
+
+void UrlDemuxerStreamProvider::Seek(base::TimeDelta time,
+                                    const PipelineStatusCB& status_cb) {
+  DVLOG(1) << __FUNCTION__;
+  status_cb.Run(PIPELINE_OK);
+}
+
+void UrlDemuxerStreamProvider::Stop() {
+  DVLOG(1) << __FUNCTION__;
+}
+
+base::TimeDelta UrlDemuxerStreamProvider::GetStartTime() const {
+  DVLOG(1) << __FUNCTION__;
+  // TODO(tguilbert): Fix this. We might need to fetch information from the
+  // MediaPlayerRender in order to have a sensible value.
+  return base::TimeDelta();
+}
+base::Time UrlDemuxerStreamProvider::GetTimelineOffset() const {
+  DVLOG(1) << __FUNCTION__;
+  // TODO(tguilbert): Return an appropriate value if needed.
+  return base::Time();
+}
+
+int64_t UrlDemuxerStreamProvider::GetMemoryUsage() const {
+  // TODO(tguilbert): Verify this is an acceptable return value.
+  return 0;
+}
+
+}  // namespace media