tracing: Make ConvertableToTraceFormat move-only scoped_ptr

base/trace_event/process_memory_dump.h

 // Copyright 2015 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 BASE_TRACE_EVENT_PROCESS_MEMORY_DUMP_H_
 #define BASE_TRACE_EVENT_PROCESS_MEMORY_DUMP_H_
 
 #include <stddef.h>
 
 #include <unordered_map>
@@ skipping 35 matching lines @@
     MemoryAllocatorDumpGuid target;
     int importance;
     const char* type;
   };
 
   // Maps allocator dumps absolute names (allocator_name/heap/subheap) to
   // MemoryAllocatorDump instances.
   using AllocatorDumpsMap =
       std::unordered_map<std::string, scoped_ptr<MemoryAllocatorDump>>;
 
-  using HeapDumpsMap =
-      std::unordered_map<std::string, scoped_refptr<TracedValue>>;
+  using HeapDumpsMap = std::unordered_map<std::string, scoped_ptr<TracedValue>>;
 
 #if defined(COUNT_RESIDENT_BYTES_SUPPORTED)
   // Returns the total bytes resident for a virtual address range, with given
   // |start_address| and |mapped_size|. |mapped_size| is specified in bytes. The
   // value returned is valid only if the given range is currently mmapped by the
   // process. The |start_address| must be page-aligned.
   static size_t CountResidentBytes(void* start_address, size_t mapped_size);
 #endif
 
   ProcessMemoryDump(const scoped_refptr<MemoryDumpSessionState>& session_state);
@@ skipping 42 matching lines @@
   MemoryAllocatorDump* GetSharedGlobalAllocatorDump(
       const MemoryAllocatorDumpGuid& guid) const;
 
   // Returns the map of the MemoryAllocatorDumps added to this dump.
   const AllocatorDumpsMap& allocator_dumps() const { return allocator_dumps_; }
 
   // Adds a heap dump for the allocator with |absolute_name|. The |TracedValue|
   // must have the correct format. |trace_event::HeapDumper| will generate such
   // a value from a |trace_event::AllocationRegister|.
   void AddHeapDump(const std::string& absolute_name,
-                   scoped_refptr<TracedValue> heap_dump);
+                   scoped_ptr<TracedValue> heap_dump);
 
   // Adds an ownership relationship between two MemoryAllocatorDump(s) with the
   // semantics: |source| owns |target|, and has the effect of attributing
   // the memory usage of |target| to |source|. |importance| is optional and
   // relevant only for the cases of co-ownership, where it acts as a z-index:
   // the owner with the highest importance will be attributed |target|'s memory.
   void AddOwnershipEdge(const MemoryAllocatorDumpGuid& source,
                         const MemoryAllocatorDumpGuid& target,
                         int importance);
   void AddOwnershipEdge(const MemoryAllocatorDumpGuid& source,
@@ skipping 59 matching lines @@
   // Keeps track of relationships between MemoryAllocatorDump(s).
   std::vector<MemoryAllocatorDumpEdge> allocator_dumps_edges_;
 
   DISALLOW_COPY_AND_ASSIGN(ProcessMemoryDump);
 };
 
 }  // namespace trace_event
 }  // namespace base
 
 #endif  // BASE_TRACE_EVENT_PROCESS_MEMORY_DUMP_H_