Update VideoFrameScheduler API and add clockless and testing implementations.

media/filters/test_video_frame_scheduler.cc

+// Copyright 2014 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/filters/test_video_frame_scheduler.h"
+
+#include "media/base/video_frame.h"
+
+namespace media {
+
+TestVideoFrameScheduler::ScheduledFrame::ScheduledFrame(
+    const scoped_refptr<VideoFrame> frame,
+    base::TimeTicks wall_ticks,
+    const DoneCB& done_cb)
+    : frame(frame), wall_ticks(wall_ticks), done_cb(done_cb) {
+}
+
+TestVideoFrameScheduler::ScheduledFrame::~ScheduledFrame() {
+}
+
+TestVideoFrameScheduler::TestVideoFrameScheduler() {
+}
+
+TestVideoFrameScheduler::~TestVideoFrameScheduler() {
+}
+
+void TestVideoFrameScheduler::ScheduleVideoFrame(
+    const scoped_refptr<VideoFrame>& frame,
+    base::TimeTicks wall_ticks,
+    const DoneCB& done_cb) {
+  scheduled_frames_.push_back(ScheduledFrame(frame, wall_ticks, done_cb));
+}
+
+void TestVideoFrameScheduler::Reset() {
+  scheduled_frames_.clear();
+}
+
+void TestVideoFrameScheduler::DisplayFramesUpTo(base::TimeTicks wall_ticks) {
+  RunDoneCBForFramesUpTo(wall_ticks, DISPLAYED);
+}
+
+void TestVideoFrameScheduler::DropFramesUpTo(base::TimeTicks wall_ticks) {
+  RunDoneCBForFramesUpTo(wall_ticks, DROPPED);
+}
+
+void TestVideoFrameScheduler::RunDoneCBForFramesUpTo(base::TimeTicks wall_ticks,
+                                                     Reason reason) {
+  std::vector<ScheduledFrame> done_frames;
+  std::vector<ScheduledFrame> remaining_frames;
+
+  for (size_t i = 0; i < scheduled_frames_.size(); ++i) {
+    if (scheduled_frames_[i].wall_ticks <= wall_ticks) {
+      done_frames.push_back(scheduled_frames_[i]);
+    } else {
+      remaining_frames.push_back(scheduled_frames_[i]);
+    }
+  }
+
+  scheduled_frames_.swap(remaining_frames);
+
+  for (size_t i = 0; i < done_frames.size(); ++i) {
+    done_frames[i].done_cb.Run(done_frames[i].frame, reason);
+  }
+}
+
+}  // namespace media