minidump: Use forward declarations in more places

minidump/minidump_memory_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_MEMORY_WRITER_H_
 #define CRASHPAD_MINIDUMP_MINIDUMP_MEMORY_WRITER_H_
 
 #include <dbghelp.h>
+#include <stdint.h>
 #include <sys/types.h>
 
 #include <vector>
 
 #include "base/basictypes.h"
 #include "minidump/minidump_stream_writer.h"
 #include "minidump/minidump_writable.h"
-#include "util/file/file_writer.h"
 
 namespace crashpad {
 
 //! \brief The base class for writers of memory ranges pointed to by
 //!     MINIDUMP_MEMORY_DESCRIPTOR objects in a minidump file.
 //!
 //! This is an abstract base class because users are expected to provide their
 //! own implementations that, when possible, obtain the memory contents
 //! on-demand in their WriteObject() methods. Memory ranges may be large, and
 //! the alternative construction would require the contents of multiple ranges
@@ skipping 119 matching lines @@
   MINIDUMP_MEMORY_LIST memory_list_base_;
   std::vector<MinidumpMemoryWriter*> memory_writers_;  // weak
   std::vector<MinidumpWritable*> children_;  // weak
 
   DISALLOW_COPY_AND_ASSIGN(MinidumpMemoryListWriter);
 };
 
 }  // namespace crashpad
 
 #endif  // CRASHPAD_MINIDUMP_MINIDUMP_MEMORY_WRITER_H_