Implement evictFrames() to support MSE's coded frame eviction algorithm.

media/blink/websourcebuffer_impl.cc

 // Copyright 2013 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/blink/websourcebuffer_impl.h"
 
 #include <limits>
 
 #include "base/bind.h"
 #include "base/callback.h"
@@ skipping 63 matching lines @@
 blink::WebTimeRanges WebSourceBufferImpl::buffered() {
   Ranges<base::TimeDelta> ranges = demuxer_->GetBufferedRanges(id_);
   blink::WebTimeRanges result(ranges.size());
   for (size_t i = 0; i < ranges.size(); i++) {
     result[i].start = ranges.start(i).InSecondsF();
     result[i].end = ranges.end(i).InSecondsF();
   }
   return result;
 }
 
+bool WebSourceBufferImpl::evictCodedFrames() {
+  return demuxer_->EvictFrames();
+}
+
 void WebSourceBufferImpl::append(
     const unsigned char* data,
     unsigned length,
     double* timestamp_offset) {
   base::TimeDelta old_offset = timestamp_offset_;
   demuxer_->AppendData(id_, data, length,
                        append_window_start_, append_window_end_,
                        &timestamp_offset_,
                        base::Bind(&WebSourceBufferImpl::InitSegmentReceived,
                                   base::Unretained(this)));
@@ skipping 51 matching lines @@
   demuxer_ = NULL;
   client_ = NULL;
 }
 
 void WebSourceBufferImpl::InitSegmentReceived() {
   DVLOG(1) << __FUNCTION__;
   client_->initializationSegmentReceived();
 }
 
 }  // namespace media