third_party/protobuf: Update to HEAD (83d681ee2c)

third_party/protobuf/patches/0009-uninline-arenastring.patch

 unchanged:
 --- protobuf-cleaned/src/google/protobuf/arenastring.cc 2015-12-30 13:21:46.000000000 -0800
 +++ protobuf-patched/src/google/protobuf/arenastring.cc 2016-03-31 13:25:40.888006485 -0700
 @@ -48,6 +48,23 @@
    }
  }
  
 +::std::string* ArenaStringPtr::MutableNoArena(
 +     const ::std::string* default_value) {
 +  if (ptr_ == default_value) {
@@ skipping 11 matching lines @@
 +}
 +
 +
  }  // namespace internal
  }  // namespace protobuf
  }  // namespace google
 only in patch2:
 unchanged:
 --- protobuf-cleaned/src/google/protobuf/arenastring.h  2015-12-30 13:21:46.000000000 -0800
 +++ protobuf-patched/src/google/protobuf/arenastring.h  2016-03-31 13:25:40.888006485 -0700
-@@ -219,12 +219,7 @@
-     return *ptr_;
-   }
+@@ -214,12 +214,7 @@ struct LIBPROTOBUF_EXPORT ArenaStringPtr {
+ 
+   inline const ::std::string& GetNoArena() const { return *ptr_; }
  
 -  inline ::std::string* MutableNoArena(const ::std::string* default_value) {
 -    if (ptr_ == default_value) {
 -      CreateInstanceNoArena(default_value);
 -    }
 -    return ptr_;
 -  }
 +  ::std::string* MutableNoArena(const ::std::string* default_value);
  
    inline ::std::string* ReleaseNoArena(const ::std::string* default_value) {
      if (ptr_ == default_value) {
-@@ -248,12 +243,7 @@
+@@ -243,11 +238,7 @@ struct LIBPROTOBUF_EXPORT ArenaStringPtr {
      }
    }
  
 -  inline void DestroyNoArena(const ::std::string* default_value) {
 -    if (ptr_ != default_value) {
 -      delete ptr_;
 -    }
--    ptr_ = NULL;
 -  }
 +  void DestroyNoArena(const ::std::string* default_value);
  
    inline void ClearToEmptyNoArena(const ::std::string* default_value) {
      if (ptr_ == default_value) {