Return a FilePath from Settings::file_path()

client/settings.h

 // Copyright 2015 The Crashpad Authors. All rights reserved.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
 //
 //     http://www.apache.org/licenses/LICENSE-2.0
 //
 // Unless required by applicable law or agreed to in writing, software
 // distributed under the License is distributed on an "AS IS" BASIS,
@@ skipping 115 matching lines @@
   // result of OpenForReadingAndWriting(). If the invalid handle is passed, the
   // caller must not be holding the handle. The new settings data are stored in
   // |out_data|. Returns true on success and false on failure, with an error
   // logged.
   bool RecoverSettings(FileHandle handle, Data* out_data);
 
   // Initializes a settings file and writes the data to |handle|. Returns true
   // on success and false on failure, with an error logged.
   bool InitializeSettings(FileHandle handle);
 
-  const char* file_path() { return file_path_.value().c_str(); }
+  const base::FilePath& file_path() const { return file_path_; }
 
   base::FilePath file_path_;
 
   InitializationStateDcheck initialized_;
 
   DISALLOW_COPY_AND_ASSIGN(Settings);
 };
 
 }  // namespace crashpad
 
 #endif  // CRASHPAD_CLIENT_SETTINGS_H_