net: Move ownership of UploadDataStream from URLRequestHttpJob to URLRequest

net/base/upload_bytes_element_reader.cc

Index: net/base/upload_bytes_element_reader.cc
diff --git a/net/base/upload_bytes_element_reader.cc b/net/base/upload_bytes_element_reader.cc
index dab63f46b42b2f236317138bec059b9b5ed32c4e..eb4c8458960786273888472641c826c233bf82e3 100644
--- a/net/base/upload_bytes_element_reader.cc
+++ b/net/base/upload_bytes_element_reader.cc
@@ -11,15 +11,20 @@
 namespace net {
 
 UploadBytesElementReader::UploadBytesElementReader(const char* bytes,
-                                                   int bytes_length)
+                                                   int length)
     : bytes_(bytes),
-      bytes_length_(bytes_length),
+      length_(length),
       offset_(0) {
 }
 
 UploadBytesElementReader::~UploadBytesElementReader() {
 }
 
+const UploadBytesElementReader*
+UploadBytesElementReader::AsBytesReader() const {
+  return this;
+}
+
 int UploadBytesElementReader::Init(const CompletionCallback& callback) {
   return InitSync();
 }
@@ -30,11 +35,11 @@ int UploadBytesElementReader::InitSync() {
 }
 
 uint64 UploadBytesElementReader::GetContentLength() const {
-  return bytes_length_;
+  return length_;
 }
 
 uint64 UploadBytesElementReader::BytesRemaining() const {
-  return bytes_length_ - offset_;
+  return length_ - offset_;
 }
 
 bool UploadBytesElementReader::IsInMemory() const {