Remove #pragma once from content

content/common/pepper_plugin_registry.h

 // Copyright (c) 2011 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.
 
 #ifndef CONTENT_COMMON_PEPPER_PLUGIN_REGISTRY_H_
 #define CONTENT_COMMON_PEPPER_PLUGIN_REGISTRY_H_
-#pragma once
 
 #include <list>
 #include <map>
 
 #include "content/public/common/pepper_plugin_info.h"
 #include "webkit/plugins/ppapi/plugin_delegate.h"
 
 // Constructs a PepperPluginInfo from a WebPluginInfo. Returns false if
 // the operation is not possible, in particular the WebPluginInfo::type
 // must be one of the pepper types.
@@ skipping 67 matching lines @@
   // non-crashed modules. If an out-of-process module crashes, it may
   // continue as long as there are WebKit references to it, but it will not
   // appear in this list.
   typedef std::map<FilePath, webkit::ppapi::PluginModule*> NonOwningModuleMap;
   NonOwningModuleMap live_modules_;
 
   DISALLOW_COPY_AND_ASSIGN(PepperPluginRegistry);
 };
 
 #endif  // CONTENT_COMMON_PEPPER_PLUGIN_REGISTRY_H_