Update third_party/protobuf to protobuf-v3.0.0-beta-3

third_party/protobuf/src/google/protobuf/util/internal/proto_writer.h

Index: third_party/protobuf/src/google/protobuf/util/internal/proto_writer.h
diff --git a/third_party/protobuf/src/google/protobuf/util/internal/proto_writer.h b/third_party/protobuf/src/google/protobuf/util/internal/proto_writer.h
index e631e56f29c419e7711ceada95f24783235c8618..957565e745f575410b41cff9dd9dc5d7fa183703 100644
--- a/third_party/protobuf/src/google/protobuf/util/internal/proto_writer.h
+++ b/third_party/protobuf/src/google/protobuf/util/internal/proto_writer.h
@@ -106,10 +106,12 @@ class LIBPROTOBUF_EXPORT ProtoWriter : public StructuredObjectWriter {
     return RenderDataPiece(name, DataPiece(value));
   }
   virtual ProtoWriter* RenderString(StringPiece name, StringPiece value) {
-    return RenderDataPiece(name, DataPiece(value));
+    return RenderDataPiece(name,
+                           DataPiece(value, use_strict_base64_decoding()));
   }
   virtual ProtoWriter* RenderBytes(StringPiece name, StringPiece value) {
-    return RenderDataPiece(name, DataPiece(value, false));
+    return RenderDataPiece(
+        name, DataPiece(value, false, use_strict_base64_decoding()));
   }
   virtual ProtoWriter* RenderNull(StringPiece name) {
     return RenderDataPiece(name, DataPiece::NullData());
@@ -126,7 +128,7 @@ class LIBPROTOBUF_EXPORT ProtoWriter : public StructuredObjectWriter {
   }
 
   // When true, we finished writing to output a complete message.
-  bool done() const { return done_; }
+  bool done() { return done_; }
 
   // Returns the proto stream object.
   google::protobuf::io::CodedOutputStream* stream() { return stream_.get(); }
@@ -266,6 +268,19 @@ class LIBPROTOBUF_EXPORT ProtoWriter : public StructuredObjectWriter {
   // Returns true if the field is repeated.
   bool IsRepeated(const google::protobuf::Field& field);
 
+  // Starts an object given the field and the enclosing type.
+  ProtoWriter* StartObjectField(const google::protobuf::Field& field,
+                                const google::protobuf::Type& type);
+
+  // Starts a list given the field and the enclosing type.
+  ProtoWriter* StartListField(const google::protobuf::Field& field,
+                              const google::protobuf::Type& type);
+
+  // Renders a primitve field given the field and the enclosing type.
+  ProtoWriter* RenderPrimitiveField(const google::protobuf::Field& field,
+                                    const google::protobuf::Type& type,
+                                    const DataPiece& value);
+
  private:
   // Variables for describing the structure of the input tree:
   // master_type_: descriptor for the whole protobuf message.