Make AXPlatformNodeDelegate::GetData() const

ui/views/accessibility/native_view_accessibility_base.cc

 // Copyright (c) 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 "ui/views/accessibility/native_view_accessibility_base.h"
 
 #include "base/memory/ptr_util.h"
 #include "base/strings/utf_string_conversions.h"
 #include "ui/events/event_utils.h"
 #include "ui/gfx/native_widget_types.h"
@@ skipping 31 matching lines @@
 
   if (focused)
     view_->RequestFocus();
   else if (view_->HasFocus())
     view_->GetFocusManager()->ClearFocus();
   return true;
 }
 
 // ui::AXPlatformNodeDelegate
 
-const ui::AXNodeData& NativeViewAccessibilityBase::GetData() {
+const ui::AXNodeData& NativeViewAccessibilityBase::GetData() const {
   data_ = ui::AXNodeData();
   data_.state = 0;
 
   // Views may misbehave if their widget is closed; return an unknown role
   // rather than possibly crashing.
   if (!view_->GetWidget() || view_->GetWidget()->IsClosed()) {
     data_.role = ui::AX_ROLE_UNKNOWN;
     data_.state = 1 << ui::AX_STATE_DISABLED;
     return data_;
   }
@@ skipping 193 matching lines @@
               child_widget_platform_node->GetDelegate());
       if (child_widget_view_accessibility->parent_widget() != widget)
         child_widget_view_accessibility->SetParentWidget(widget);
     }
 
     result_child_widgets->push_back(child_widget);
   }
 }
 
 }  // namespace views