Fix crash in vie_encoder when encoder configure fails

webrtc/video/vie_encoder.cc

Index: webrtc/video/vie_encoder.cc
diff --git a/webrtc/video/vie_encoder.cc b/webrtc/video/vie_encoder.cc
index 4591d89599a66f71d90adfaca33d6465d0645f89..c30752b6dfb048e96d40a5f2e2e25853fe4b529e 100644
--- a/webrtc/video/vie_encoder.cc
+++ b/webrtc/video/vie_encoder.cc
@@ -438,13 +438,12 @@ void ViEEncoder::ReconfigureEncoder() {
                      static_cast<uint32_t>(max_data_payload_length_)) == VCM_OK;
   if (!success) {
     LOG(LS_ERROR) << "Failed to configure encoder.";
-    rate_allocator_.reset();
     RTC_DCHECK(success);
-  } else {
-    video_sender_.UpdateChannelParemeters(rate_allocator_.get(),
-                                          bitrate_observer_);
   }
 
+  video_sender_.UpdateChannelParemeters(rate_allocator_.get(),
+                                        bitrate_observer_);
+
   int framerate = stats_proxy_->GetSendFrameRate();
   if (framerate == 0)
     framerate = codec.maxFramerate;