Switch to equalIgnoringASCIICase throughout modules/accessibility

BUG=627682

Review-Url: https://codereview.chromium.org/2793913007
Cr-Commit-Position: refs/heads/master@{#461858}
void AXLayoutObject::loadInlineTextBoxes() {
  if (!getLayoutObject() || !getLayoutObject()->isText())
    return;

  clearChildren();
  addInlineTextBoxChildren(true);
}

void AXLayoutObject::loadInlineTextBoxes() {
  if (!getLayoutObject() || !getLayoutObject()->isText())
    return;

  clearChildren();
  addInlineTextBoxChildren(true);
}
