Added an empty() method to rtc::Buffer

webrtc/base/buffer.h

Index: webrtc/base/buffer.h
diff --git a/webrtc/base/buffer.h b/webrtc/base/buffer.h
index 545ddb2be7cc91df5b2b695948d1610abe9fe331..f0e69c8a2bb53beb4503fd69a9da09485fbbf9d9 100644
--- a/webrtc/base/buffer.h
+++ b/webrtc/base/buffer.h
@@ -124,6 +124,8 @@ class BufferT {
     return reinterpret_cast<U*>(data_.get());
   }
 
+  bool empty() const { return size_ == 0; }

[kwiberg-webrtc, 2016/08/30 15:34:12]

Since I'm paranoid, I'd like to see an

  RTC_DCHECK(IsConsistent());

in there as well.

[ossu, 2016/08/30 15:45:55]

Done.

+
   size_t size() const {
     RTC_DCHECK(IsConsistent());
     return size_;