Add chunked uploads support to SPDY

net/base/upload_data_stream.h

Index: net/base/upload_data_stream.h
diff --git a/net/base/upload_data_stream.h b/net/base/upload_data_stream.h
index f291140348b7d2acea7b940eee783771fa36e018..decc3f6604b4c1036920b2a8aded1e236a3cf468 100644
--- a/net/base/upload_data_stream.h
+++ b/net/base/upload_data_stream.h
@@ -27,6 +27,12 @@ class UploadDataStream {
   IOBuffer* buf() const { return buf_; }
   size_t buf_len() const { return buf_len_; }
 
+  // TODO(satish): We should ideally have UploadDataStream expose a Read()
+  // method which returns data in a caller provided IOBuffer. That would do away
+  // with this method and make the interface cleaner as well with less memmove
+  // calls.
+  size_t GetMaxBufferSize() const { return kBufSize; }
+
   // Call to indicate that a portion of the stream's buffer was consumed.  This
   // call modifies the stream's buffer so that it contains the next segment of
   // the upload data to be consumed.
@@ -50,6 +56,16 @@ class UploadDataStream {
   // position < size.
   bool eof() const { return eof_; }
 
+  // Returns whether the data available in buf() includes the last chunk in a
+  // chunked data stream. This method returns true once the final chunk has been
+  // placed in the IOBuffer returned by buf(), in contrast to eof() which
+  // returns true only after the data in buf() has been consumed.
+  bool IsOnLastChunk() const;
+
+#if defined(UNIT_TEST)
+  static void set_merge_chunks(bool merge) { merge_chunks_ = merge; }
+#endif
+
  private:
   enum { kBufSize = 16384 };
 
@@ -93,6 +109,10 @@ class UploadDataStream {
   // Whether there is no data left to read.
   bool eof_;
 
+  // TODO(satish): Remove this once we have a better way to unit test POST
+  // requests with chunked uploads.
+  static bool merge_chunks_;
+
   DISALLOW_COPY_AND_ASSIGN(UploadDataStream);
 };