minidump: Change the ownership model

minidump/minidump_context_writer.h

 // Copyright 2014 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,
 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
 #ifndef CRASHPAD_MINIDUMP_MINIDUMP_CONTEXT_WRITER_H_
 #define CRASHPAD_MINIDUMP_MINIDUMP_CONTEXT_WRITER_H_
 
 #include <sys/types.h>
 
 #include "base/basictypes.h"
 #include "minidump/minidump_context.h"
 #include "minidump/minidump_writable.h"
 
 namespace crashpad {
 
 //! \brief The base class for writers of CPU context structures in minidump
 //!     files.
 class MinidumpContextWriter : public internal::MinidumpWritable {
  public:
-  virtual ~MinidumpContextWriter();
+  ~MinidumpContextWriter() override;
 
  protected:
   MinidumpContextWriter() : MinidumpWritable() {}
 
   //! \brief Returns the size of the context structure that this object will
   //!     write.
   //!
   //! \note This method will only be called in #kStateFrozen or a subsequent
   //!     state.
   virtual size_t ContextSize() const = 0;
@@ skipping 64 matching lines @@
 
  private:
   MinidumpContextAMD64 context_;
 
   DISALLOW_COPY_AND_ASSIGN(MinidumpContextAMD64Writer);
 };
 
 }  // namespace crashpad
 
 #endif  // CRASHPAD_MINIDUMP_MINIDUMP_CONTEXT_WRITER_H_