NOT FOR COMMIT: Make altgr+left and altgr+right navigate back/forward on views.

ui/views/focus/focus_manager.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/focus/focus_manager.h"
 
 #include <algorithm>
 #include <vector>
 
 #include "base/auto_reset.h"
@@ skipping 512 matching lines @@
 
 void FocusManager::AddFocusChangeListener(FocusChangeListener* listener) {
   focus_change_listeners_.AddObserver(listener);
 }
 
 void FocusManager::RemoveFocusChangeListener(FocusChangeListener* listener) {
   focus_change_listeners_.RemoveObserver(listener);
 }
 
 bool FocusManager::ProcessArrowKeyTraversal(const ui::KeyEvent& event) {
-  if (event.IsShiftDown() || event.IsControlDown() || event.IsAltDown())
+  if (event.IsShiftDown() || event.IsControlDown() || event.IsAltDown() || event.IsAltGrDown())

[Peter Kasting, 2016/05/27 01:11:01]

Nit: 80 columns

     return false;
 
   const int key_code = event.key_code();
   if (key_code == ui::VKEY_LEFT || key_code == ui::VKEY_UP) {
     AdvanceFocus(true);
     return true;
   }
   if (key_code == ui::VKEY_RIGHT || key_code == ui::VKEY_DOWN) {
     AdvanceFocus(false);
     return true;
   }
 
   return false;
 }
 
 bool FocusManager::IsFocusable(View* view) const {
   DCHECK(view);
 
 // |keyboard_accessible_| is only used on Mac.
 #if defined(OS_MACOSX)
   return keyboard_accessible_ ? view->IsAccessibilityFocusable()
                               : view->IsFocusable();
 #else
   return view->IsAccessibilityFocusable();
 #endif
 }
 
 }  // namespace views