get sourceView()
    {
        if (this._sourceView || !WebInspector.RequestView.hasTextContent(this.request))
            return this._sourceView;

        var contentProvider = new WebInspector.RequestResponseView.ContentProvider(this.request);
        var sourceFrame = new WebInspector.ResourceSourceFrame(contentProvider);
        sourceFrame.setHighlighterType(this.request.resourceType().canonicalMimeType() || this.request.mimeType);
        this._sourceView = sourceFrame;
        return this._sourceView;
    }
@constructor
@extends {WebInspector.RequestContentView}
@param {!WebInspector.NetworkRequest} request