DevTools: Fix how highlighted element title is shown when element is highlighted in inspected page.

Source/core/inspector/InspectorOverlayPage.html

 <!--
  Copyright (C) 2012 Google Inc. All rights reserved.
 
  Redistribution and use in source and binary forms, with or without
  modification, are permitted provided that the following conditions
  are met:
 
  1.  Redistributions of source code must retain the above copyright
      notice, this list of conditions and the following disclaimer.
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@@ skipping 407 matching lines @@
     document.getElementById("class-name").textContent = className || "";
     document.getElementById("node-width").textContent = elementInfo.nodeWidth;
     document.getElementById("node-height").textContent = elementInfo.nodeHeight;
     var elementTitle = document.getElementById("element-title");
 
     var marginQuad = highlight.quads[0];
 
     var titleWidth = elementTitle.offsetWidth + 6;
     var titleHeight = elementTitle.offsetHeight + 4;
 
-    var anchorTop = marginQuad[0].y;
-    var anchorBottom = marginQuad[3].y
+    var anchorTop = Math.min(marginQuad[0].y, marginQuad[1].y, marginQuad[2].y, marginQuad[3].y);
+    var anchorBottom = Math.max(marginQuad[0].y, marginQuad[1].y, marginQuad[2].y, marginQuad[3].y);
+    var anchorLeft = Math.min(marginQuad[0].x, marginQuad[1].x, marginQuad[2].x, marginQuad[3].x);
 
     const arrowHeight = 7;
     var renderArrowUp = false;
     var renderArrowDown = false;
 
-    var boxX = Math.max(2, marginQuad[0].x);
+    var boxX = Math.max(2, anchorLeft);
     if (boxX + titleWidth > canvasWidth)
         boxX = canvasWidth - titleWidth - 2;
 
     var boxY;
     if (anchorTop > canvasHeight) {
         boxY = canvasHeight - titleHeight - arrowHeight;
         renderArrowDown = true;
     } else if (anchorBottom < 0) {
         boxY = arrowHeight;
         renderArrowUp = true;
@@ skipping 241 matching lines @@
     <button id="step-over-button" title="Step over next function call (F10)."><div class="glyph"></div></button>
 </div>
 </body>
 <canvas id="canvas" class="fill"></canvas>
 <div id="element-title">
   <span id="tag-name"></span><span id="node-id"></span><span id="class-name"></span>
   <span id="node-width"></span><span class="px">px</span><span class="px"> &#xD7; </span><span id="node-height"></span><span class="px">px</span>
 </div>
 <div id="log"></div>
 </html>