Update //third_party/protobuf to version 3.

third_party/protobuf/src/google/protobuf/map_field_lite.h

Index: third_party/protobuf/src/google/protobuf/map_field_lite.h
diff --git a/third_party/protobuf/src/google/protobuf/map_field_lite.h b/third_party/protobuf/src/google/protobuf/map_field_lite.h
new file mode 100644
index 0000000000000000000000000000000000000000..860dae55f2c69a06547bf632c587af155ba05a08
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+++ b/third_party/protobuf/src/google/protobuf/map_field_lite.h
@@ -0,0 +1,278 @@
+// Protocol Buffers - Google's data interchange format
+// Copyright 2008 Google Inc.  All rights reserved.
+// https://developers.google.com/protocol-buffers/
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#ifndef GOOGLE_PROTOBUF_MAP_FIELD_LITE_H__
+#define GOOGLE_PROTOBUF_MAP_FIELD_LITE_H__
+
+#include <google/protobuf/map.h>
+#include <google/protobuf/map_entry_lite.h>
+
+namespace google {
+namespace protobuf {
+namespace internal {
+
+// This class provides accesss to map field using generated api. It is used for
+// internal generated message implentation only. Users should never use this
+// directly.
+template <typename Key, typename T,
+          WireFormatLite::FieldType key_wire_type,
+          WireFormatLite::FieldType value_wire_type,
+          int default_enum_value = 0>
+class MapFieldLite {
+  // Define message type for internal repeated field.
+  typedef MapEntryLite<Key, T, key_wire_type, value_wire_type,
+                       default_enum_value> EntryType;
+
+ public:
+  MapFieldLite();
+  explicit MapFieldLite(Arena* arena);
+  virtual ~MapFieldLite();
+
+  // Accessors
+  virtual const Map<Key, T>& GetMap() const;
+  virtual Map<Key, T>* MutableMap();
+
+  // Convenient methods for generated message implementation.
+  virtual int size() const;
+  virtual void Clear();
+  virtual void MergeFrom(const MapFieldLite& other);
+  virtual void Swap(MapFieldLite* other);
+
+  // Set default enum value only for proto2 map field whose value is enum type.
+  void SetDefaultEnumValue();
+
+  // Used in the implementation of parsing. Caller should take the ownership.
+  EntryType* NewEntry() const;
+  // Used in the implementation of serializing enum value type. Caller should
+  // take the ownership.
+  EntryType* NewEnumEntryWrapper(const Key& key, const T t) const;
+  // Used in the implementation of serializing other value types. Caller should
+  // take the ownership.
+  EntryType* NewEntryWrapper(const Key& key, const T& t) const;
+
+ protected:
+  // Convenient methods to get internal google::protobuf::Map
+  virtual const Map<Key, T>& GetInternalMap() const;
+  virtual Map<Key, T>* MutableInternalMap();
+
+ private:
+  typedef void DestructorSkippable_;
+
+  Arena* arena_;
+  Map<Key, T>* map_;
+
+  friend class ::google::protobuf::Arena;
+};
+
+template <typename Key, typename T,
+          WireFormatLite::FieldType key_wire_type,
+          WireFormatLite::FieldType value_wire_type,
+          int default_enum_value>
+MapFieldLite<Key, T, key_wire_type, value_wire_type,
+             default_enum_value>::MapFieldLite()
+    : arena_(NULL) {
+  map_ = new Map<Key, T>;
+  SetDefaultEnumValue();
+}
+
+template <typename Key, typename T,
+          WireFormatLite::FieldType key_wire_type,
+          WireFormatLite::FieldType value_wire_type,
+          int default_enum_value>
+MapFieldLite<Key, T, key_wire_type, value_wire_type,
+             default_enum_value>::MapFieldLite(Arena* arena)
+  : arena_(arena) {
+  map_ = Arena::CreateMessage<Map<Key, T> >(arena);
+  SetDefaultEnumValue();
+}
+
+template <typename Key, typename T,
+          WireFormatLite::FieldType key_wire_type,
+          WireFormatLite::FieldType value_wire_type,
+          int default_enum_value>
+MapFieldLite<Key, T, key_wire_type, value_wire_type,
+             default_enum_value>::~MapFieldLite() {
+  delete map_;
+}
+
+template <typename Key, typename T,
+          WireFormatLite::FieldType key_wire_type,
+          WireFormatLite::FieldType value_wire_type,
+          int default_enum_value>
+const Map<Key, T>&
+MapFieldLite<Key, T, key_wire_type, value_wire_type,
+             default_enum_value>::GetMap() const {
+  return *map_;
+}
+
+template <typename Key, typename T,
+          WireFormatLite::FieldType key_wire_type,
+          WireFormatLite::FieldType value_wire_type,
+          int default_enum_value>
+Map<Key, T>*
+MapFieldLite<Key, T, key_wire_type, value_wire_type,
+             default_enum_value>::MutableMap() {
+  return map_;
+}
+
+template <typename Key, typename T,
+          WireFormatLite::FieldType key_wire_type,
+          WireFormatLite::FieldType value_wire_type,
+          int default_enum_value>
+int
+MapFieldLite<Key, T, key_wire_type, value_wire_type,
+             default_enum_value>::size() const {
+  return map_->size();
+}
+
+template <typename Key, typename T,
+          WireFormatLite::FieldType key_wire_type,
+          WireFormatLite::FieldType value_wire_type,
+          int default_enum_value>
+void
+MapFieldLite<Key, T, key_wire_type, value_wire_type,
+             default_enum_value>::Clear() {
+  map_->clear();
+}
+
+template <typename Key, typename T,
+          WireFormatLite::FieldType key_wire_type,
+          WireFormatLite::FieldType value_wire_type,
+          int default_enum_value>
+void
+MapFieldLite<Key, T, key_wire_type, value_wire_type,
+             default_enum_value>::MergeFrom(
+    const MapFieldLite& other) {
+  for (typename Map<Key, T>::const_iterator it = other.map_->begin();
+       it != other.map_->end(); ++it) {
+    (*map_)[it->first] = it->second;
+  }
+}
+
+template <typename Key, typename T,
+          WireFormatLite::FieldType key_wire_type,
+          WireFormatLite::FieldType value_wire_type,
+          int default_enum_value>
+void
+MapFieldLite<Key, T, key_wire_type, value_wire_type,
+             default_enum_value>::Swap(
+    MapFieldLite* other) {
+  std::swap(map_, other->map_);
+}
+
+template <typename Key, typename T,
+          WireFormatLite::FieldType key_wire_type,
+          WireFormatLite::FieldType value_wire_type,
+          int default_enum_value>
+void
+MapFieldLite<Key, T, key_wire_type, value_wire_type,
+             default_enum_value>::SetDefaultEnumValue() {
+  MutableInternalMap()->SetDefaultEnumValue(default_enum_value);
+}
+
+template <typename Key, typename T,
+          WireFormatLite::FieldType key_wire_type,
+          WireFormatLite::FieldType value_wire_type,
+          int default_enum_value>
+const Map<Key, T>&
+MapFieldLite<Key, T, key_wire_type, value_wire_type,
+             default_enum_value>::GetInternalMap() const {
+  return *map_;
+}
+
+template <typename Key, typename T,
+          WireFormatLite::FieldType key_wire_type,
+          WireFormatLite::FieldType value_wire_type,
+          int default_enum_value>
+Map<Key, T>*
+MapFieldLite<Key, T, key_wire_type, value_wire_type,
+             default_enum_value>::MutableInternalMap() {
+  return map_;
+}
+
+#define EntryType \
+  MapEntryLite<Key, T, key_wire_type, value_wire_type, default_enum_value>
+
+template <typename Key, typename T,
+          WireFormatLite::FieldType key_wire_type,
+          WireFormatLite::FieldType value_wire_type,
+          int default_enum_value>
+EntryType*
+MapFieldLite<Key, T, key_wire_type, value_wire_type,
+             default_enum_value>::NewEntry() const {
+  if (arena_ == NULL) {
+    return new EntryType();
+  } else {
+    return Arena::CreateMessage<EntryType>(arena_);
+  }
+}
+
+template <typename Key, typename T,
+          WireFormatLite::FieldType key_wire_type,
+          WireFormatLite::FieldType value_wire_type,
+          int default_enum_value>
+EntryType*
+MapFieldLite<Key, T, key_wire_type, value_wire_type,
+             default_enum_value>::NewEnumEntryWrapper(const Key& key,
+                                                      const T t) const {
+  return EntryType::EnumWrap(key, t, arena_);
+}
+
+template <typename Key, typename T,
+          WireFormatLite::FieldType key_wire_type,
+          WireFormatLite::FieldType value_wire_type,
+          int default_enum_value>
+EntryType*
+MapFieldLite<Key, T, key_wire_type, value_wire_type,
+             default_enum_value>::NewEntryWrapper(const Key& key,
+                                                  const T& t) const {
+  return EntryType::Wrap(key, t, arena_);
+}
+
+#undef EntryType
+
+// True if IsInitialized() is true for value field in all elements of t. T is
+// expected to be message.  It's useful to have this helper here to keep the
+// protobuf compiler from ever having to emit loops in IsInitialized() methods.
+// We want the C++ compiler to inline this or not as it sees fit.
+template <typename Key, typename T>
+bool AllAreInitialized(const Map<Key, T>& t) {
+  for (typename Map<Key, T>::const_iterator it = t.begin(); it != t.end();
+       ++it) {
+    if (!it->second.IsInitialized()) return false;
+  }
+  return true;
+}
+
+}  // namespace internal
+}  // namespace protobuf
+
+}  // namespace google
+#endif  // GOOGLE_PROTOBUF_MAP_FIELD_LITE_H__