gn/linux: warnings as errors, turn on Wextra

content/common/cursors/webcursor_aurawin.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 "content/common/cursors/webcursor.h"
 
 #include <windows.h>
 
 #include "third_party/WebKit/public/platform/WebCursorInfo.h"
 #include "ui/gfx/icon_util.h"
 
 namespace content {
 
-const ui::PlatformCursor WebCursor::GetPlatformCursor() {
+ui::PlatformCursor WebCursor::GetPlatformCursor() {
   if (!IsCustom())
     return LoadCursor(NULL, IDC_ARROW);
 
   if (custom_cursor_)
     return custom_cursor_;
 
   custom_cursor_ =
       IconUtil::CreateCursorFromDIB(
           custom_size_,
           hotspot_,
@@ skipping 26 matching lines @@
   if (custom_cursor_) {
     DestroyIcon(custom_cursor_);
     custom_cursor_ = NULL;
   }
 }
 
 void WebCursor::CopyPlatformData(const WebCursor& other) {
 }
 
 }  // namespace content