Replace WebSocketFrameChunk with WebSocketFrame

net/websockets/websocket_stream.h

Index: net/websockets/websocket_stream.h
diff --git a/net/websockets/websocket_stream.h b/net/websockets/websocket_stream.h
index 4885bbe729541894c65ee18b2fdf312271348b26..6b50a887dd9df5f16964ec81fffd2b615ce7d1db 100644
--- a/net/websockets/websocket_stream.h
+++ b/net/websockets/websocket_stream.h
@@ -24,7 +24,7 @@ class BoundNetLog;
 class HttpRequestHeaders;
 class HttpResponseInfo;
 class URLRequestContext;
-struct WebSocketFrameChunk;
+struct WebSocketFrame;
 
 // WebSocketStreamRequest is the caller's handle to the process of creation of a
 // WebSocketStream. Deleting the object before the OnSuccess or OnFailure
@@ -91,10 +91,10 @@ class NET_EXPORT_PRIVATE WebSocketStream : public WebSocketStreamBase {
   virtual ~WebSocketStream();
 
   // Reads WebSocket frame data. This operation finishes when new frame data
-  // becomes available. Each frame message might be chopped off in the middle
-  // as specified in the description of the WebSocketFrameChunk struct.
-  // |frame_chunks| remains owned by the caller and must be valid until the
-  // operation completes or Close() is called. |frame_chunks| must be empty on
+  // becomes available.
+  //
+  // |frames| remains owned by the caller and must be valid until the
+  // operation completes or Close() is called. |frames| must be empty on
   // calling.
   //
   // This function should not be called while the previous call of ReadFrames()
@@ -102,20 +102,18 @@ class NET_EXPORT_PRIVATE WebSocketStream : public WebSocketStreamBase {
   //
   // Returns net::OK or one of the net::ERR_* codes.
   //
-  // frame_chunks->size() >= 1 if the result is OK.
+  // frames->size() >= 1 if the result is OK.
   //
-  // A frame with an incomplete header will never be inserted into
-  // |frame_chunks|. If the currently available bytes of a new frame do not form
-  // a complete frame header, then the implementation will buffer them until all
-  // the fields in the WebSocketFrameHeader object can be filled. If
-  // ReadFrames() is freshly called in this situation, it will return
-  // ERR_IO_PENDING exactly as if no data was available.
+  // Only complete frames are inserted into |frames|. If the currently available
+  // bytes of a new frame do not form a complete frame header, then the
+  // implementation will buffer them until all the fields in the
+  // WebSocketFrameHeader object can be filled. If ReadFrames() is freshly
+  // called in this situation, it will return ERR_IO_PENDING exactly as if no
+  // data was available.
   //
-  // Every WebSocketFrameChunk in the vector except the first and last is
-  // guaranteed to be a complete frame. The first chunk may be the final part
-  // of the previous frame. The last chunk may be the first part of a new
-  // frame. If there is only one chunk, then it may consist of data from the
-  // middle part of a frame.
+  // Original frame boundaries are not preserved. In particular, if only part of
+  // a frame is available, then the frame will be split, and the available data
+  // returned immediately.
   //
   // When the socket is closed on the remote side, this method will return
   // ERR_CONNECTION_CLOSED. It will not return OK with an empty vector.
@@ -124,33 +122,23 @@ class NET_EXPORT_PRIVATE WebSocketStream : public WebSocketStreamBase {
   // ReadFrames may discard the incomplete frame. Since the renderer will
   // discard any incomplete messages when the connection is closed, this makes
   // no difference to the overall semantics.
-  virtual int ReadFrames(ScopedVector<WebSocketFrameChunk>* frame_chunks,
+  virtual int ReadFrames(ScopedVector<WebSocketFrame>* frames,
                          const CompletionCallback& callback) = 0;
 
-  // Writes WebSocket frame data. |frame_chunks| must only contain complete
-  // frames. Every chunk must have a non-NULL |header| and the |final_chunk|
-  // boolean set to true.
-  //
-  // The |frame_chunks| pointer must remain valid until the operation completes
-  // or Close() is called. WriteFrames() will modify the contents of
-  // |frame_chunks| in the process of sending the message. After WriteFrames()
-  // has completed it is safe to clear and then re-use the vector, but other
-  // than that the caller should make no assumptions about its contents.
+  // Writes WebSocket frame data.
   //
-  // This function should not be called while a previous call to WriteFrames()
-  // on the same stream is pending.
+  // |frames| must be valid until the operation completes or Close() is called.
   //
-  // Frame boundaries may not be preserved. Frames may be split or
-  // coalesced. Message boundaries are preserved (as required by WebSocket API
-  // semantics).
+  // This function must not be called while a previous call of WriteFrames() is
+  // still pending.
   //
   // This method will only return OK if all frames were written completely.
   // Otherwise it will return an appropriate net error code.
-  virtual int WriteFrames(ScopedVector<WebSocketFrameChunk>* frame_chunks,
+  virtual int WriteFrames(ScopedVector<WebSocketFrame>* frames,
                           const CompletionCallback& callback) = 0;
 
   // Closes the stream. All pending I/O operations (if any) are cancelled
-  // at this point, so |frame_chunks| can be freed.
+  // at this point, so |frames| can be freed.
   virtual void Close() = 0;
 
   // The subprotocol that was negotiated for the stream. If no protocol was