Add transfer size paramater to didFinishLoading [3/3]

Source/devtools/front_end/NetworkRequest.js

Index: Source/devtools/front_end/NetworkRequest.js
diff --git a/Source/devtools/front_end/NetworkRequest.js b/Source/devtools/front_end/NetworkRequest.js
index 066e6d2b5660c4ff0bbfab0230efbb9c8e389e67..4301d75264d69154d793ddf6972a41c64fdb76f8 100644
--- a/Source/devtools/front_end/NetworkRequest.js
+++ b/Source/devtools/front_end/NetworkRequest.js
@@ -250,24 +250,7 @@ WebInspector.NetworkRequest.prototype = {
      */
     get transferSize()
     {
-        if (typeof this._transferSize === "number")
-            return this._transferSize;
-        if (this.statusCode === 304) // Not modified
-            return this.responseHeadersSize;
-        if (this._cached)
-            return 0;
-        // If we did not receive actual transfer size from network
-        // stack, we prefer using Content-Length over resourceSize as
-        // resourceSize may differ from actual transfer size if platform's
-        // network stack performed decoding (e.g. gzip decompression).
-        // The Content-Length, though, is expected to come from raw
-        // response headers and will reflect actual transfer length.
-        // This won't work for chunked content encoding, so fall back to
-        // resourceSize when we don't have Content-Length. This still won't
-        // work for chunks with non-trivial encodings. We need a way to
-        // get actual transfer size from the network stack.
-        var bodySize = Number(this.responseHeaderValue("Content-Length") || this.resourceSize);
-        return this.responseHeadersSize + bodySize;
+        return this._transferSize || 0;
     },
 
     /**
@@ -279,6 +262,14 @@ WebInspector.NetworkRequest.prototype = {
     },
 
     /**
+     * @param {number} x
+     */
+    setTransferSize: function(x)
+    {
+        this._transferSize = x;
+    },
+
+    /**
      * @return {boolean}
      */
     get finished()