Unify specification of file open, close, and write callbacks.

runtime/vm/heap_profiler.h

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #ifndef VM_HEAP_PROFILER_H_
 #define VM_HEAP_PROFILER_H_
 
 #include <set>
 
 #include "include/dart_api.h"
@@ skipping 56 matching lines @@
     kBoolean = 4,
     kChar = 5,
     kFloat = 6,
     kDouble = 7,
     kByte = 8,
     kShort = 9,
     kInt = 10,
     kLong = 11
   };
 
-  HeapProfiler(Dart_HeapProfileWriteCallback callback, void* stream);
+  HeapProfiler(Dart_FileWriteCallback callback, void* stream);
   ~HeapProfiler();
 
   // Writes a root to the heap dump.
   void WriteRoot(const RawObject* raw_obj);
 
   // Writes a object to the heap dump.
   void WriteObject(const RawObject* raw_obj);
 
  private:
   // Record tags describe top-level records.
@@ skipping 154 matching lines @@
   void WriteClassDump(const RawClass* raw_class);
   void WriteInstanceDump(const RawObject* raw_obj);
   void WriteObjectArrayDump(const RawArray* raw_array);
   void WritePrimitiveArrayDump(const RawByteArray* raw_byte_array,
                                uint8_t tag,
                                const void* data);
 
   static const RawClass* GetClass(const RawObject* raw_obj);
   static const RawClass* GetSuperClass(const RawClass* raw_class);
 
-  Dart_HeapProfileWriteCallback write_callback_;
+  Dart_FileWriteCallback write_callback_;
 
   void* output_stream_;
 
   Record* heap_dump_record_;
 
   std::set<const RawSmi*> smi_table_;
   std::set<const RawClass*> class_table_;
   std::set<const RawString*> string_table_;
 
   DISALLOW_COPY_AND_ASSIGN(HeapProfiler);
@@ skipping 41 matching lines @@
   virtual void VisitObject(RawObject* obj);
 
  private:
   HeapProfiler* profiler_;
   DISALLOW_COPY_AND_ASSIGN(HeapProfilerObjectVisitor);
 };
 
 }  // namespace dart
 
 #endif  // VM_HEAP_PROFILER_H_