Settings Search: Make tooltip run away from mouse.

chrome/browser/resources/settings/settings_shared_css.html

 <link rel="import" href="chrome://resources/cr_elements/shared_style_css.html">
 <link rel="import" href="/settings_vars_css.html">
 
 <!-- Common styles for Material Design settings. -->
 <dom-module id="settings-shared">
   <template>
     <style include="cr-shared-style">
       h2 {
         align-items: center;
         display: flex;
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       }
 
       .favicon-image {
         background-repeat: no-repeat;
         background-size: contain;
         height: 16px;
         width: 16px;
       }
 
       .search-bubble {
-        pointer-events: none;
         position: absolute;
         z-index: 1;
       }
 
       .search-bubble-innards {
         align-items: center;
         background-color: var(--paper-yellow-500);
         border-radius: 2px;
         padding: 4px 10px;
         text-align: center;
         width: 100px;
       }
 
       /* Provides the arrow which points at the anchor element. */
       .search-bubble-innards::after {
         -webkit-transform: rotate(-45deg);
         background-color: var(--paper-yellow-500);
         content: '';
         height: 10px;
         left: 55px;
         position: absolute;
         top: -5px;
         width: 10px;
       }
+
+      /* Turns the arrow direction downwards, when the bubble is placed above
+       * the anchor element */
+      .search-bubble-innards.above::after {
+        -webkit-transform: rotate(-135deg);
+        bottom: -5px;
+        top: auto;
+      }
     </style>
   </template>
 </dom-module>