Render process changes for ResourceTiming sizes.

third_party/WebKit/public/platform/WebURLLoaderClient.h

 /*
  * Copyright (C) 2009 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 27 matching lines @@
 
 class WebURLLoader;
 class WebURLRequest;
 class WebURLResponse;
 struct WebURLError;
 
 class BLINK_PLATFORM_EXPORT WebURLLoaderClient {
 public:
     // Called when following a redirect. |newRequest| contains the request
     // generated by the redirect. The client may modify |newRequest|.
+    // |encodedDataLength| is the size of the data that came from the network
+    // for this redirect, or zero if the redirect was served from cache.
     virtual void willFollowRedirect(
-        WebURLLoader*, WebURLRequest& newRequest, const WebURLResponse& redirectResponse) { }
+        WebURLLoader*, WebURLRequest& newRequest, const WebURLResponse& redirectResponse, int64_t encodedDataLength) {}
 
     // Called to report upload progress. The bytes reported correspond to
     // the HTTP message body.
     virtual void didSendData(
         WebURLLoader*, unsigned long long bytesSent, unsigned long long totalBytesToBeSent) { }
 
     // Called when response headers are received.
     virtual void didReceiveResponse(WebURLLoader*, const WebURLResponse&) { }
 
     // Called when response headers are received.
     // The ownership of |handle| is transferred to the callee.
     virtual void didReceiveResponse(WebURLLoader* loader, const WebURLResponse& response, WebDataConsumerHandle* handle)
     {
         delete handle;
         didReceiveResponse(loader, response);
     }
 
     // Called when a chunk of response data is downloaded. This is only called
     // if WebURLRequest's downloadToFile flag was set to true.
     virtual void didDownloadData(WebURLLoader*, int dataLength, int encodedDataLength) { }
 
-    // Called when a chunk of response data is received.
-    virtual void didReceiveData(WebURLLoader*, const char* data, int dataLength, int encodedDataLength) { }
+    // Called when a chunk of response data is received. |dataLength| is the
+    // number of bytes pointed to by |data|. |encodedDataLength| is the number
+    // of bytes actually received from network to serve this chunk, including
+    // HTTP headers and framing if relevant. It is 0 if the response was served
+    // from cache, and -1 if this information is unavailable.
+    // TODO(ricea): -1 is problematic for consumers maintaining a running
+    //     total. Investigate using 0 for all unavailable cases.
+    // |encodedBodyLength| is the number of bytes used to store this chunk,
+    // possibly encrypted, excluding headers or framing. It is set even if the
+    // response was served from cache.
+    virtual void didReceiveData(WebURLLoader*, const char* data, int dataLength, int encodedDataLength, int encodedBodyLength) {}
 
     // Called when a chunk of renderer-generated metadata is received from the cache.
     virtual void didReceiveCachedMetadata(WebURLLoader*, const char* data, int dataLength) { }
 
     // Called when the load completes successfully.
     // |totalEncodedDataLength| may be equal to kUnknownEncodedDataLength.
     virtual void didFinishLoading(WebURLLoader* loader, double finishTime, int64_t totalEncodedDataLength) { }
 
     // Called when the load completes with an error.
     virtual void didFail(WebURLLoader*, const WebURLError&) { }
 
     // Value passed to didFinishLoading when total encoded data length isn't known.
     static const int64_t kUnknownEncodedDataLength = -1;
 
 protected:
     virtual ~WebURLLoaderClient() { }
 };
 
 } // namespace blink
 
 #endif