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        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - Too much duplicated code in LayerTreeHosts implementations"
   href="https://bugs.webkit.org/show_bug.cgi?id=159144">159144</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>Too much duplicated code in LayerTreeHosts implementations
          </td>
        </tr>

        <tr>
          <th>Classification</th>
          <td>Unclassified
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>WebKit
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>WebKit Local Build
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>Unspecified
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>Unspecified
          </td>
        </tr>

        <tr>
          <th>Status</th>
          <td>NEW
          </td>
        </tr>

        <tr>
          <th>Keywords</th>
          <td>Gtk
          </td>
        </tr>

        <tr>
          <th>Severity</th>
          <td>Normal
          </td>
        </tr>

        <tr>
          <th>Priority</th>
          <td>P2
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>WebKit2
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>webkit-unassigned&#64;lists.webkit.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>cgarcia&#64;igalia.com
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>bugs-noreply&#64;webkitgtk.org, gyuyoung.kim&#64;webkit.org, yoon&#64;igalia.com, zan&#64;falconsigh.net
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      <p>
        <div>
        <pre>There's some code common and duplicated in all current LayerTreeHosts implementations (Gtk, Coordinated, and ThreadedCoordinated). The thing is even worse in the case of ThreadedCoordinated and Coordinated, where the former is actually a special case of the later, and it seems like code was copy pasted and then modified to add ThreadedCoordinated specific code. The problem of that approach, apart from the code duplication, is that common parts end up diverging too.</pre>
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      </p>
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