DevTools: use timing information for "disk cached" resources.

Source/devtools/front_end/network/HAREntry.js

Index: Source/devtools/front_end/network/HAREntry.js
diff --git a/Source/devtools/front_end/network/HAREntry.js b/Source/devtools/front_end/network/HAREntry.js
index aa1d049593b28c748321599fa7ae42d278e2b7c8..46a15dc59d7657dc51fd5da99f3b1a5bf0122ea6 100644
--- a/Source/devtools/front_end/network/HAREntry.js
+++ b/Source/devtools/front_end/network/HAREntry.js
@@ -237,7 +237,7 @@ WebInspector.HAREntry.prototype = {
      */
     get responseBodySize()
     {
-        if (this._request.cached || this._request.statusCode === 304)
+        if (this._request.cached() || this._request.statusCode === 304)
             return 0;
         if (!this._request.responseHeadersText)
             return -1;
@@ -249,7 +249,7 @@ WebInspector.HAREntry.prototype = {
      */
     get responseCompression()
     {
-        if (this._request.cached || this._request.statusCode === 304 || this._request.statusCode === 206)
+        if (this._request.cached() || this._request.statusCode === 304 || this._request.statusCode === 206)
             return;
         if (!this._request.responseHeadersText)
             return;