Update //third_party/protobuf to version 3.

third_party/protobuf/src/google/protobuf/text_format.h

Index: third_party/protobuf/src/google/protobuf/text_format.h
diff --git a/third_party/protobuf/src/google/protobuf/text_format.h b/third_party/protobuf/src/google/protobuf/text_format.h
index 01f3ffb0865e673c68baee2fbc213a93c948eed5..ef3d4a8fd7905ce79c806dc6dfb751ebdeb25fe4 100644
--- a/third_party/protobuf/src/google/protobuf/text_format.h
+++ b/third_party/protobuf/src/google/protobuf/text_format.h
@@ -1,6 +1,6 @@
 // Protocol Buffers - Google's data interchange format
 // Copyright 2008 Google Inc.  All rights reserved.
-// http://code.google.com/p/protobuf/
+// 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
@@ -39,11 +39,16 @@
 #define GOOGLE_PROTOBUF_TEXT_FORMAT_H__
 
 #include <map>
+#include <memory>
+#ifndef _SHARED_PTR_H
+#include <google/protobuf/stubs/shared_ptr.h>
+#endif
 #include <string>
 #include <vector>
+
 #include <google/protobuf/stubs/common.h>
-#include <google/protobuf/message.h>
 #include <google/protobuf/descriptor.h>
+#include <google/protobuf/message.h>
 
 namespace google {
 namespace protobuf {
@@ -85,6 +90,41 @@ class LIBPROTOBUF_EXPORT TextFormat {
                                       int index,
                                       string* output);
 
+  // The default printer that converts scalar values from fields into
+  // their string representation.
+  // You can derive from this FieldValuePrinter if you want to have
+  // fields to be printed in a different way and register it at the
+  // Printer.
+  class LIBPROTOBUF_EXPORT FieldValuePrinter {
+   public:
+    FieldValuePrinter();
+    virtual ~FieldValuePrinter();
+    virtual string PrintBool(bool val) const;
+    virtual string PrintInt32(int32 val) const;
+    virtual string PrintUInt32(uint32 val) const;
+    virtual string PrintInt64(int64 val) const;
+    virtual string PrintUInt64(uint64 val) const;
+    virtual string PrintFloat(float val) const;
+    virtual string PrintDouble(double val) const;
+    virtual string PrintString(const string& val) const;
+    virtual string PrintBytes(const string& val) const;
+    virtual string PrintEnum(int32 val, const string& name) const;
+    virtual string PrintFieldName(const Message& message,
+                                  const Reflection* reflection,
+                                  const FieldDescriptor* field) const;
+    virtual string PrintMessageStart(const Message& message,
+                                     int field_index,
+                                     int field_count,
+                                     bool single_line_mode) const;
+    virtual string PrintMessageEnd(const Message& message,
+                                   int field_index,
+                                   int field_count,
+                                   bool single_line_mode) const;
+
+   private:
+    GOOGLE_DISALLOW_EVIL_CONSTRUCTORS(FieldValuePrinter);
+  };
+
   // Class for those users which require more fine-grained control over how
   // a protobuffer message is printed out.
   class LIBPROTOBUF_EXPORT Printer {
@@ -120,6 +160,15 @@ class LIBPROTOBUF_EXPORT TextFormat {
       single_line_mode_ = single_line_mode;
     }
 
+    bool IsInSingleLineMode() {
+      return single_line_mode_;
+    }
+
+    // If use_field_number is true, uses field number instead of field name.
+    void SetUseFieldNumber(bool use_field_number) {
+      use_field_number_ = use_field_number;
+    }
+
     // Set true to print repeated primitives in a format like:
     //   field_name: [1, 2, 3, 4]
     // instead of printing each value on its own line.  Short format applies
@@ -132,11 +181,64 @@ class LIBPROTOBUF_EXPORT TextFormat {
     // Set true to output UTF-8 instead of ASCII.  The only difference
     // is that bytes >= 0x80 in string fields will not be escaped,
     // because they are assumed to be part of UTF-8 multi-byte
-    // sequences.
-    void SetUseUtf8StringEscaping(bool as_utf8) {
-      utf8_string_escaping_ = as_utf8;
+    // sequences. This will change the default FieldValuePrinter.
+    void SetUseUtf8StringEscaping(bool as_utf8);
+
+    // Set the default FieldValuePrinter that is used for all fields that
+    // don't have a field-specific printer registered.
+    // Takes ownership of the printer.
+    void SetDefaultFieldValuePrinter(const FieldValuePrinter* printer);
+
+    // Sets whether we want to hide unknown fields or not.
+    // Usually unknown fields are printed in a generic way that includes the
+    // tag number of the field instead of field name. However, sometimes it
+    // is useful to be able to print the message without unknown fields (e.g.
+    // for the python protobuf version to maintain consistency between its pure
+    // python and c++ implementations).
+    void SetHideUnknownFields(bool hide) {
+      hide_unknown_fields_ = hide;
+    }
+
+    // If print_message_fields_in_index_order is true, print fields of a proto
+    // message using the order defined in source code instead of the field
+    // number. By default, use the field number order.
+    void SetPrintMessageFieldsInIndexOrder(
+        bool print_message_fields_in_index_order) {
+      print_message_fields_in_index_order_ =
+          print_message_fields_in_index_order;
+    }
+
+    // If expand==true, expand google.protobuf.Any payloads. The output
+    // will be of form
+    //    [type_url] { <value_printed_in_text> }
+    //
+    // If expand==false, print Any using the default printer. The output will
+    // look like
+    //    type_url: "<type_url>"  value: "serialized_content"
+    void SetExpandAny(bool expand) {
+      expand_any_ = expand;
     }
 
+    // If non-zero, we truncate all string fields that are  longer than this
+    // threshold.  This is useful when the proto message has very long strings,
+    // e.g., dump of encoded image file.
+    //
+    // NOTE(hfgong):  Setting a non-zero value breaks round-trip safe
+    // property of TextFormat::Printer.  That is, from the printed message, we
+    // cannot fully recover the original string field any more.
+    void SetTruncateStringFieldLongerThan(
+        const int64 truncate_string_field_longer_than) {
+      truncate_string_field_longer_than_ = truncate_string_field_longer_than;
+    }
+
+    // Register a custom field-specific FieldValuePrinter for fields
+    // with a particular FieldDescriptor.
+    // Returns "true" if the registration succeeded, or "false", if there is
+    // already a printer for that FieldDescriptor.
+    // Takes ownership of the printer on successful registration.
+    bool RegisterFieldValuePrinter(const FieldDescriptor* field,
+                                   const FieldValuePrinter* printer);
+
    private:
     // Forward declaration of an internal class used to print the text
     // output to the OutputStream (see text_format.cc for implementation).
@@ -180,18 +282,45 @@ class LIBPROTOBUF_EXPORT TextFormat {
     void PrintUnknownFields(const UnknownFieldSet& unknown_fields,
                             TextGenerator& generator) const;
 
+    bool PrintAny(const Message& message, TextGenerator& generator) const;
+
     int initial_indent_level_;
 
     bool single_line_mode_;
 
+    bool use_field_number_;
+
     bool use_short_repeated_primitives_;
 
-    bool utf8_string_escaping_;
+    bool hide_unknown_fields_;
+
+    bool print_message_fields_in_index_order_;
+
+    bool expand_any_;
+
+    int64 truncate_string_field_longer_than_;
+
+    google::protobuf::scoped_ptr<const FieldValuePrinter> default_field_value_printer_;
+    typedef map<const FieldDescriptor*,
+                const FieldValuePrinter*> CustomPrinterMap;
+    CustomPrinterMap custom_printers_;
   };
 
   // Parses a text-format protocol message from the given input stream to
-  // the given message object.  This function parses the format written
-  // by Print().
+  // the given message object. This function parses the human-readable format
+  // written by Print(). Returns true on success. The message is cleared first,
+  // even if the function fails -- See Merge() to avoid this behavior.
+  //
+  // Example input: "user {\n id: 123 extra { gender: MALE language: 'en' }\n}"
+  //
+  // One use for this function is parsing handwritten strings in test code.
+  // Another use is to parse the output from google::protobuf::Message::DebugString()
+  // (or ShortDebugString()), because these functions output using
+  // google::protobuf::TextFormat::Print().
+  //
+  // If you would like to read a protocol buffer serialized in the
+  // (non-human-readable) binary wire format, see
+  // google::protobuf::MessageLite::ParseFromString().
   static bool Parse(io::ZeroCopyInputStream* input, Message* output);
   // Like Parse(), but reads directly from a string.
   static bool ParseFromString(const string& input, Message* output);
@@ -314,12 +443,24 @@ class LIBPROTOBUF_EXPORT TextFormat {
       allow_partial_ = allow;
     }
 
+    // Allow field names to be matched case-insensitively.
+    // This is not advisable if there are fields that only differ in case, or
+    // if you want to enforce writing in the canonical form.
+    // This is 'false' by default.
+    void AllowCaseInsensitiveField(bool allow) {
+      allow_case_insensitive_field_ = allow;
+    }
+
     // Like TextFormat::ParseFieldValueFromString
     bool ParseFieldValueFromString(const string& input,
                                    const FieldDescriptor* field,
                                    Message* output);
 
 
+    void AllowFieldNumber(bool allow) {
+      allow_field_number_ = allow;
+    }
+
    private:
     // Forward declaration of an internal class used to parse text
     // representations (see text_format.cc for implementation).
@@ -335,9 +476,15 @@ class LIBPROTOBUF_EXPORT TextFormat {
     Finder* finder_;
     ParseInfoTree* parse_info_tree_;
     bool allow_partial_;
+    bool allow_case_insensitive_field_;
     bool allow_unknown_field_;
+    bool allow_unknown_enum_;
+    bool allow_field_number_;
+    bool allow_relaxed_whitespace_;
+    bool allow_singular_overwrites_;
   };
 
+
  private:
   // Hack: ParseInfoTree declares TextFormat as a friend which should extend
   // the friendship to TextFormat::Parser::ParserImpl, but unfortunately some
@@ -358,6 +505,7 @@ inline void TextFormat::RecordLocation(ParseInfoTree* info_tree,
   info_tree->RecordLocation(field, location);
 }
 
+
 inline TextFormat::ParseInfoTree* TextFormat::CreateNested(
     ParseInfoTree* info_tree, const FieldDescriptor* field) {
   return info_tree->CreateNested(field);