Remove PlatformFile from WebFileUtilitiesImpl

content/child/webfileutilities_impl.h

 // 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.
 
 #ifndef CONTENT_CHILD_WEBFILEUTILITIES_IMPL_H_
 #define CONTENT_CHILD_WEBFILEUTILITIES_IMPL_H_
 
-#include "base/platform_file.h"
 #include "content/common/content_export.h"
 #include "third_party/WebKit/public/platform/WebFileInfo.h"
 #include "third_party/WebKit/public/platform/WebFileUtilities.h"
 
 namespace content {
 
 class CONTENT_EXPORT WebFileUtilitiesImpl
     : NON_EXPORTED_BASE(public blink::WebFileUtilities) {
  public:
   WebFileUtilitiesImpl();
   virtual ~WebFileUtilitiesImpl();
 
   // WebFileUtilities methods:
   virtual bool getFileInfo(const blink::WebString& path,
                            blink::WebFileInfo& result);
   virtual blink::WebString directoryName(const blink::WebString& path);
   virtual blink::WebString baseName(const blink::WebString& path);
   virtual blink::WebURL filePathToURL(const blink::WebString& path);
-  virtual base::PlatformFile openFile(const blink::WebString& path, int mode);
-  virtual void closeFile(base::PlatformFile& handle);
-  virtual int readFromFile(base::PlatformFile handle, char* data, int length);
 
   void set_sandbox_enabled(bool sandbox_enabled) {
     sandbox_enabled_ = sandbox_enabled;
   }
 
  protected:
   bool sandbox_enabled_;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_CHILD_WEBFILEUTILITIES_IMPL_H_