PacketBuffer is now ref counted.

webrtc/modules/video_coding/video_packet_buffer_unittest.cc

Index: webrtc/modules/video_coding/video_packet_buffer_unittest.cc
diff --git a/webrtc/modules/video_coding/video_packet_buffer_unittest.cc b/webrtc/modules/video_coding/video_packet_buffer_unittest.cc
index ee9a853a246271164d8f95a6717446550c826f1e..a7c3b43cba2dde19877ce2d19ddf72460003231a 100644
--- a/webrtc/modules/video_coding/video_packet_buffer_unittest.cc
+++ b/webrtc/modules/video_coding/video_packet_buffer_unittest.cc
@@ -29,7 +29,7 @@ class TestPacketBuffer : public ::testing::Test,
   TestPacketBuffer()
       : rand_(0x8739211),
         clock_(new SimulatedClock(0)),
-        packet_buffer_(new PacketBuffer(clock_.get(),
+        packet_buffer_(PacketBuffer::Create(clock_.get(),
                        kStartSize,
                        kMaxSize,
                        this)),
@@ -253,7 +253,7 @@ class TestPacketBuffer : public ::testing::Test,
 
   Random rand_;
   std::unique_ptr<Clock> clock_;
-  std::unique_ptr<PacketBuffer> packet_buffer_;
+  rtc::scoped_refptr<PacketBuffer> packet_buffer_;
   struct FrameComp {
     bool operator()(const std::pair<uint16_t, uint8_t> f1,
                     const std::pair<uint16_t, uint8_t> f2) const {
@@ -934,7 +934,7 @@ TEST_F(TestPacketBuffer, Vp8LayerSync) {
 }
 
 TEST_F(TestPacketBuffer, Vp8InsertLargeFrames) {
-  packet_buffer_.reset(new PacketBuffer(clock_.get(), 1 << 3, 1 << 12, this));
+  packet_buffer_ = PacketBuffer::Create(clock_.get(), 1 << 3, 1 << 12, this);
   uint16_t pid = Rand();
   uint16_t seq_num = Rand();