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    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - [CoordinatedGraphics] setAcceleratedCompositingForFixedPositionEnabled didn't work properly in WTR."
   href="https://bugs.webkit.org/show_bug.cgi?id=147627">147627</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>[CoordinatedGraphics] setAcceleratedCompositingForFixedPositionEnabled didn't work properly in WTR.
          </td>
        </tr>

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

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

        <tr>
          <th>Version</th>
          <td>528+ (Nightly 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>Severity</th>
          <td>Normal
          </td>
        </tr>

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

        <tr>
          <th>Component</th>
          <td>WebKit EFL
          </td>
        </tr>

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

        <tr>
          <th>Reporter</th>
          <td>hs85.jeong&#64;samsung.com
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>demarchi&#64;webkit.org
          </td>
        </tr></table>
      <p>
        <div>
        <pre>compositing/fixed-with-fixed-layout.html failed after r186911 because

# 49 line in LayoutTests/compositing/fixed-with-fixed-layout.html 
if (window.internals) {
    internals.settings.setAcceleratedCompositingForFixedPositionEnabled(true);

'internals.settings.setAcceleratedCompositingForFixedPositionEnabled(true)' didn't work properly in WTR.

CoordinatedGrapihcs set the 'AcceleratedCompositingForFixedPosition' in WebPage::setUseFixedLayout normally.
But only 'frameView-&gt;setUseFixedLayout()' was invoked in WTR if I use the 'internals.settings.setAcceleratedCompositingForFixedPositionEnabled' in test.
So we need to set the AcceleratedCompositingForFixedPositionEnabled in Internals::setUseFixedLayout() to work correctly.</pre>
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