Remove SendPacer from ViEEncoder

webrtc/call/bitrate_allocator.h

Index: webrtc/call/bitrate_allocator.h
diff --git a/webrtc/call/bitrate_allocator.h b/webrtc/call/bitrate_allocator.h
index 404a312dad3745d70c3b4c71af7150dc9f02eee7..5264bb641bbf168a38649c0547efca1d2c9174d5 100644
--- a/webrtc/call/bitrate_allocator.h
+++ b/webrtc/call/bitrate_allocator.h
@@ -42,11 +42,9 @@ class BitrateAllocator {
   BitrateAllocator();
 
   // Allocate target_bitrate across the registered BitrateAllocatorObservers.
-  // Returns actual bitrate allocated (might be higher than target_bitrate if
-  // for instance EnforceMinBitrate() is enabled.
-  uint32_t OnNetworkChanged(uint32_t target_bitrate,
-                            uint8_t fraction_loss,
-                            int64_t rtt);
+  void OnNetworkChanged(uint32_t target_bitrate,
+                        uint8_t fraction_loss,
+                        int64_t rtt);
 
   // Set the start and max send bitrate used by the bandwidth management.
   //
@@ -60,9 +58,6 @@ class BitrateAllocator {
 
   void RemoveObserver(BitrateAllocatorObserver* observer);
 
-  void GetMinMaxBitrateSumBps(int* min_bitrate_sum_bps,
-                              int* max_bitrate_sum_bps) const;
-
   // This method controls the behavior when the available bitrate is lower than
   // the minimum bitrate, or the sum of minimum bitrates.
   // When true, the bitrate will never be set lower than the minimum bitrate(s).
@@ -70,6 +65,10 @@ class BitrateAllocator {
   // respective minimum bitrate, satisfying one observer after the other.
   void EnforceMinBitrate(bool enforce_min_bitrate);
 
+  // Returns the minimum send bitrate. Zero if EnforceMinBitrate(false)
+  // has been called.
+  int GetMinSendBitrate() const;
+
  private:
   struct BitrateConfiguration {
     BitrateConfiguration(uint32_t min_bitrate, uint32_t max_bitrate)
@@ -97,6 +96,7 @@ class BitrateAllocator {
                                           uint32_t sum_min_bitrates)
       EXCLUSIVE_LOCKS_REQUIRED(crit_sect_);
 
+  ObserverBitrateMap ZeroRateAllocation() EXCLUSIVE_LOCKS_REQUIRED(crit_sect_);
   ObserverBitrateMap LowRateAllocation(uint32_t bitrate)
       EXCLUSIVE_LOCKS_REQUIRED(crit_sect_);