Include-what-you-use for WrapUnique/MakeUnique.

content/renderer/accessibility/blink_ax_tree_source.cc

 // Copyright 2014 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 "content/renderer/accessibility/blink_ax_tree_source.h"
 
 #include <stddef.h>
 
 #include <set>
 
+#include "base/memory/ptr_util.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/string_util.h"
 #include "base/strings/utf_string_conversions.h"
 #include "content/common/accessibility_messages.h"
 #include "content/renderer/accessibility/blink_ax_enum_conversion.h"
 #include "content/renderer/accessibility/render_accessibility_impl.h"
 #include "content/renderer/browser_plugin/browser_plugin.h"
 #include "content/renderer/render_frame_impl.h"
 #include "content/renderer/render_frame_proxy.h"
 #include "content/renderer/render_view_impl.h"
@@ skipping 751 matching lines @@
     return WebAXObject();
 
   WebDocument document = render_frame_->GetWebFrame()->document();
   if (!document.isNull())
     return document.accessibilityObject();
 
   return WebAXObject();
 }
 
 }  // namespace content