diff --git a/webrtc/base/bytebuffer.cc b/webrtc/base/bytebuffer.cc
index c2ffe60934..317b6f383a 100644
--- a/webrtc/base/bytebuffer.cc
+++ b/webrtc/base/bytebuffer.cc
@@ -43,7 +43,6 @@ ByteBufferWriter::ByteBufferWriter(const char* bytes, size_t len,
 }
 
 void ByteBufferWriter::Construct(const char* bytes, size_t len) {
-  start_ = 0;
   size_ = len;
   bytes_ = new char[size_];
 
@@ -119,25 +118,21 @@ char* ByteBufferWriter::ReserveWriteBuffer(size_t len) {
 }
 
 void ByteBufferWriter::Resize(size_t size) {
-  size_t len = std::min(end_ - start_, size);
-  if (size <= size_) {
-    // Don't reallocate, just move data backwards
-    memmove(bytes_, bytes_ + start_, len);
-  } else {
+  size_t len = std::min(end_, size);
+  if (size > size_) {
     // Reallocate a larger buffer.
     size_ = std::max(size, 3 * size_ / 2);
     char* new_bytes = new char[size_];
-    memcpy(new_bytes, bytes_ + start_, len);
+    memcpy(new_bytes, bytes_, len);
     delete [] bytes_;
     bytes_ = new_bytes;
   }
-  start_ = 0;
   end_ = len;
 }
 
 void ByteBufferWriter::Clear() {
   memset(bytes_, 0, size_);
-  start_ = end_ = 0;
+  end_ = 0;
 }
 
 
diff --git a/webrtc/base/bytebuffer.h b/webrtc/base/bytebuffer.h
index cd7b2c6cea..546c447815 100644
--- a/webrtc/base/bytebuffer.h
+++ b/webrtc/base/bytebuffer.h
@@ -46,9 +46,9 @@ class ByteBufferWriter : public ByteBuffer {
 
   ~ByteBufferWriter();
 
-  const char* Data() const { return bytes_ + start_; }
-  size_t Length() const { return end_ - start_; }
-  size_t Capacity() const { return size_ - start_; }
+  const char* Data() const { return bytes_; }
+  size_t Length() const { return end_; }
+  size_t Capacity() const { return size_; }
 
   // Write value to the buffer. Resizes the buffer when it is
   // neccessary.
@@ -77,7 +77,6 @@ class ByteBufferWriter : public ByteBuffer {
 
   char* bytes_;
   size_t size_;
-  size_t start_;
   size_t end_;
 
   // There are sensible ways to define these, but they aren't needed in our code