Add chunked uploads support to SPDY

net/spdy/spdy_stream.h

Index: net/spdy/spdy_stream.h
diff --git a/net/spdy/spdy_stream.h b/net/spdy/spdy_stream.h
index 9a055c2ab9e3cf30365770e99ec1c0a0c47fbaa7..6d6b09c57a69653036637a2ccdb0c412a25bc9dd 100644
--- a/net/spdy/spdy_stream.h
+++ b/net/spdy/spdy_stream.h
@@ -16,6 +16,7 @@
 #include "googleurl/src/gurl.h"
 #include "net/base/bandwidth_metrics.h"
 #include "net/base/io_buffer.h"
+#include "net/base/upload_data.h"
 #include "net/base/net_log.h"
 #include "net/spdy/spdy_framer.h"
 #include "net/spdy/spdy_protocol.h"
@@ -34,7 +35,9 @@ class SSLInfo;
 // a SpdyNetworkTransaction) will maintain a reference to the stream.  When
 // initiated by the server, only the SpdySession will maintain any reference,
 // until such a time as a client object requests a stream for the path.
-class SpdyStream : public base::RefCounted<SpdyStream> {
+class SpdyStream
+    : public base::RefCounted<SpdyStream>,
+      public ChunkCallback {
  public:
   // Delegate handles protocol specific behavior of spdy stream.
   class Delegate {
@@ -50,9 +53,10 @@ class SpdyStream : public base::RefCounted<SpdyStream> {
     virtual int OnSendBody() = 0;
 
     // Called when data has been sent. |status| indicates network error
-    // or number of bytes has been sent.
-    // Returns true if no more data to be sent.
-    virtual bool OnSendBodyComplete(int status) = 0;
+    // or number of bytes that has been sent. On return, |eof| is set to true
+    // if no more data is available to send in the request body.
+    // Returns network error code. OK when it successfully sent data.
+    virtual int OnSendBodyComplete(int status, bool* eof) = 0;
 
     // Called when the SYN_STREAM, SYN_REPLY, or HEADERS frames are received.
     // Normal streams will receive a SYN_REPLY and optional HEADERS frames.
@@ -73,6 +77,9 @@ class SpdyStream : public base::RefCounted<SpdyStream> {
     // Called when SpdyStream is closed.
     virtual void OnClose(int status) = 0;
 
+    // Sets the callback to be invoked when a new chunk is available to upload.
+    virtual void set_chunk_callback(ChunkCallback* callback) = 0;
+
    protected:
     friend class base::RefCounted<Delegate>;
     virtual ~Delegate() {}
@@ -222,6 +229,9 @@ class SpdyStream : public base::RefCounted<SpdyStream> {
   // true.
   GURL GetUrl() const;
 
+  // ChunkCallback methods.
+  virtual void OnChunkAvailable();
+
  private:
   enum State {
     STATE_NONE,