Allow keys with AltGr modifier to be inserted in Textfield

ui/views/controls/textfield/textfield.cc

 // Copyright (c) 2012 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 "ui/views/controls/textfield/textfield.h"
 
 #include <string>
 
 #include "base/trace_event/trace_event.h"
 #include "ui/accessibility/ax_view_state.h"
@@ skipping 1435 matching lines @@
     model_->ReplaceText(new_text);
   skip_input_method_cancel_composition_ = false;
   UpdateAfterChange(true, true);
   OnAfterUserAction();
 }
 
 void Textfield::InsertChar(base::char16 ch, int flags) {
   // Filter out all control characters, including tab and new line characters,
   // and all characters with Alt modifier (and Search on ChromeOS). But allow
   // characters with the AltGr modifier. On Windows AltGr is represented by
-  // Alt+Ctrl, and on Linux it's a different flag that we don't care about.
-  const bool should_insert_char =
-      ((ch >= 0x20 && ch < 0x7F) || ch > 0x9F) &&
-      !ui::IsSystemKeyModifier(flags);
+  // Alt+Ctrl or Right Alt, and on Linux it's a different flag that we don't
+  // care about.
+  const bool should_insert_char = ((ch >= 0x20 && ch < 0x7F) || ch > 0x9F) &&
+                                  !ui::IsSystemKeyModifier(flags);
   if (GetTextInputType() == ui::TEXT_INPUT_TYPE_NONE || !should_insert_char)
     return;
 
   DoInsertChar(ch);
 
   if (text_input_type_ == ui::TEXT_INPUT_TYPE_PASSWORD &&
       password_reveal_duration_ != base::TimeDelta()) {
     const size_t change_offset = model_->GetCursorPosition();
     DCHECK_GT(change_offset, 0u);
     RevealPasswordChar(change_offset - 1);
@@ skipping 419 matching lines @@
     RequestFocus();
   model_->MoveCursorTo(mouse);
   if (!selection_clipboard_text.empty()) {
     model_->InsertText(selection_clipboard_text);
     UpdateAfterChange(true, true);
   }
   OnAfterUserAction();
 }
 
 }  // namespace views