Cleanup: remove GTK stuff

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 "base/auto_reset.h"
 #include "base/logging.h"
@@ skipping 62 matching lines @@
     return false;
 #endif
 
   ui::Accelerator accelerator(event.key_code(),
                               event.IsShiftDown(),
                               event.IsControlDown(),
                               event.IsAltDown());
 
 #if defined(OS_WIN)
   // If the focused view wants to process the key event as is, let it be.
-  // On Linux we always dispatch key events to the focused view first, so
-  // we should not do this check here. See also NativeWidgetGtk::OnKeyEvent().
+  // This is not used for linux/aura.
   if (focused_view_ && focused_view_->SkipDefaultKeyEventProcessing(event) &&
       !accelerator_manager_->HasPriorityHandler(accelerator))
     return true;
 #endif
 
   // Intercept Tab related messages for focus traversal.
   // Note that we don't do focus traversal if the root window is not part of the
   // active window hierarchy as this would mean we have no focused view and
   // would focus the first focusable view.
 #if defined(OS_WIN) && !defined(USE_AURA)
@@ skipping 366 matching lines @@
 
 void FocusManager::AddFocusChangeListener(FocusChangeListener* listener) {
   focus_change_listeners_.AddObserver(listener);
 }
 
 void FocusManager::RemoveFocusChangeListener(FocusChangeListener* listener) {
   focus_change_listeners_.RemoveObserver(listener);
 }
 
 }  // namespace views