title: flex is not honouring the children width in chrome
body: <p><div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false">
  <div class="snippet-code">
  <pre class="snippet-code-css lang-css prettyprint-override"><code>.parent {
    width: 100%;
    display: flex;
    flex-direction: row;
  }
  
  .outer-item {
    flex-direction: row;
    display: flex;
  }
  
  .bsimplelayout {
    flex: auto;
    min-width: 0;
    max-width: none;
    display: flex;
    flex-flow: column wrap;
  }
  
  .item {
    border: 1px solid red;
    display: flex;
    flex-direction: row;
  }
  
  .label {
    flex: 0 0 120.0px;
  }
  
  .field-item {
    width: auto;
  }</code></pre>
  <pre class="snippet-code-html lang-html prettyprint-override"><code>&lt;div class="parent"&gt;
    &lt;div class="outer-item"&gt;
      &lt;div class="bsimplelayout"&gt;
        &lt;div class="item"&gt;
          &lt;label class="label"&gt;label left&lt;/label&gt;
          &lt;div class="field-item"&gt;
            &lt;select class="standard" style="width:auto"&gt;
              &lt;option value="Arapp:Administrator" title=""&gt;Arapp:Administrator&lt;/option&gt;
              &lt;option value="Arapp:Manager" title=""&gt;Arapp:Manager&lt;/option&gt;
              &lt;option value="Arapp:ManagersManaged" title=""&gt;Arapp:ManagersManaged&lt;/option&gt;
              &lt;option value="Arapp:PegaAPI" title=""&gt;Arapp:PegaAPI&lt;/option&gt;
              &lt;option value="Arapp:User" title=""&gt;Arapp:User&lt;/option&gt;
              &lt;option value="Arapp:UsersManaged" title=""&gt;Arapp:UsersManaged&lt;/option&gt;
              &lt;option value="UIRegressionFlex:ClientActivityTracking" title=""&gt;UIRegressionFlex:ClientActivityTracking&lt;/option&gt;
            &lt;/select&gt;
          &lt;/div&gt;
        &lt;/div&gt;
      &lt;/div&gt;
    &lt;/div&gt;
  &lt;/div&gt;</code></pre>
  </div>
  </div>
  </p>
  
  <p>"item" div should have expanded till all the children.</p>
  
  <p>Expected :- "item" div should have expanded till the end of all children.red border should have covered all the children.
  Actual :- "item" div does not cover the children.refer the red border</p>
  
  <p>Donot want to remove the flex basis of 120px added.</p>