Make autofill dropdown to obey text-align: left|right CSS property.

components/autofill/content/renderer/form_autofill_util.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "components/autofill/content/renderer/form_autofill_util.h"
 
 #include <map>
 #include <set>
 
 #include "base/command_line.h"
@@ skipping 1381 matching lines @@
     return;
 
   const WebInputElement* input_element = toWebInputElement(&element);
   if (IsAutofillableInputElement(input_element) ||
       IsTextAreaElement(element) ||
       IsSelectElement(element)) {
     field->is_autofilled = element.isAutofilled();
     if (!g_prevent_layout)
       field->is_focusable = element.isFocusable();
     field->should_autocomplete = element.autoComplete();
+
+    // Use 'text-align: left|right' if set or 'direction' otherwise.
+    // See crbug.com/482339
     field->text_direction = element.directionForFormData() ==
         "rtl" ? base::i18n::RIGHT_TO_LEFT : base::i18n::LEFT_TO_RIGHT;
+    if (element.alignmentForFormData() == "left")
+        field->text_direction = base::i18n::LEFT_TO_RIGHT;

[esprehn, 2016/07/21 22:05:19]

This makes text-align always win over direction. I think all elements have
text-align set and the default is left, so this will make this always left even
for things in RTL?

+    else if (element.alignmentForFormData() == "right")
+        field->text_direction = base::i18n::RIGHT_TO_LEFT;
   }
 
   if (IsAutofillableInputElement(input_element)) {
     if (IsTextInput(input_element))
       field->max_length = input_element->maxLength();
 
     SetCheckStatus(field, IsCheckableElement(input_element),
                    input_element->isChecked());
   } else if (IsTextAreaElement(element)) {
     // Nothing more to do in this case.
@@ skipping 375 matching lines @@
     // Zero selection start is for password manager, which can show usernames
     // that do not begin with the user input value.
     selection_start = (offset == base::string16::npos) ? 0 : offset;
   }
 
   input_element->setSelectionRange(selection_start, suggestion.length());
 }
 
 }  // namespace form_util
 }  // namespace autofill