132   for (auto frame_it = frames_.begin();  in FindNextFrame()
133        frame_it != frames_.end() && frame_it->first <= last_continuous_frame_;  in FindNextFrame()
169       if (next_frame_it == frames_.end() ||  in FindNextFrame()
240     RTC_DCHECK(frame_it != frames_.end());  in GetNextFrame()
255           frames_.begin(), frame_it,  in GetNextFrame()
264     frames_.erase(frames_.begin(), ++frame_it);  in GetNextFrame()
393     FrameMap::iterator prev_frame = frames_.find(id);  in IsCompleteSuperFrame()
394     if (prev_frame == frames_.end() || !prev_frame->second.frame)  in IsCompleteSuperFrame()
397       if (prev_frame == frames_.begin())  in IsCompleteSuperFrame()
413     FrameMap::iterator next_frame = frames_.find(id);  in IsCompleteSuperFrame()
414     if (next_frame == frames_.end() || !next_frame->second.frame)  in IsCompleteSuperFrame()
419       if (next_frame == frames_.end() || !next_frame->second.frame ||  in IsCompleteSuperFrame()
448   if (frames_.size() >= kMaxFramesBuffered) {  in InsertFrame()
496   if (!frames_.empty() && id < frames_.begin()->first &&  in InsertFrame()
497       frames_.rbegin()->first < id) {  in InsertFrame()
504   auto info = frames_.emplace(id, FrameInfo()).first;  in InsertFrame()
564       auto frame_ref = frames_.find(frame->second.dependent_frames[d]);  in PropagateContinuity()
565       RTC_DCHECK(frame_ref != frames_.end());  in PropagateContinuity()
568       if (frame_ref != frames_.end()) {  in PropagateContinuity()
582     auto ref_info = frames_.find(info.dependent_frames[d]);  in PropagateDecodability()
583     RTC_DCHECK(ref_info != frames_.end());  in PropagateDecodability()
585     if (ref_info != frames_.end()) {  in PropagateDecodability()
634       auto ref_info = frames_.find(ref_key);  in UpdateFrameInfoWithIncomingFrame()
636           ref_info != frames_.end() && ref_info->second.continuous;  in UpdateFrameInfoWithIncomingFrame()
644     auto ref_info = frames_.find(ref_key);  in UpdateFrameInfoWithIncomingFrame()
650         (ref_info != frames_.end() && ref_info->second.continuous);  in UpdateFrameInfoWithIncomingFrame()
665     frames_[dep.id].dependent_frames.push_back(id);  in UpdateFrameInfoWithIncomingFrame()
702         frames_.begin(), frames_.end(),  in ClearFramesAndHistory()
710   frames_.clear();  in ClearFramesAndHistory()