third_party/protobuf: Update to HEAD (f52e188fe4)

third_party/protobuf/src/google/protobuf/compiler/cpp/cpp_helpers.cc

Index: third_party/protobuf/src/google/protobuf/compiler/cpp/cpp_helpers.cc
diff --git a/third_party/protobuf/src/google/protobuf/compiler/cpp/cpp_helpers.cc b/third_party/protobuf/src/google/protobuf/compiler/cpp/cpp_helpers.cc
index 2ad4d36a5834d6e5fcad91ad4f412c09e85d7d63..5a37b9d7650f4e8c1a9f498a85e7c612ea5da884 100644
--- a/third_party/protobuf/src/google/protobuf/compiler/cpp/cpp_helpers.cc
+++ b/third_party/protobuf/src/google/protobuf/compiler/cpp/cpp_helpers.cc
@@ -371,9 +371,9 @@ string DefaultValue(const FieldDescriptor* field) {
       return "GOOGLE_ULONGLONG(" + SimpleItoa(field->default_value_uint64())+ ")";
     case FieldDescriptor::CPPTYPE_DOUBLE: {
       double value = field->default_value_double();
-      if (value == numeric_limits<double>::infinity()) {
+      if (value == std::numeric_limits<double>::infinity()) {
         return "::google::protobuf::internal::Infinity()";
-      } else if (value == -numeric_limits<double>::infinity()) {
+      } else if (value == -std::numeric_limits<double>::infinity()) {
         return "-::google::protobuf::internal::Infinity()";
       } else if (value != value) {
         return "::google::protobuf::internal::NaN()";
@@ -384,9 +384,9 @@ string DefaultValue(const FieldDescriptor* field) {
     case FieldDescriptor::CPPTYPE_FLOAT:
       {
         float value = field->default_value_float();
-        if (value == numeric_limits<float>::infinity()) {
+        if (value == std::numeric_limits<float>::infinity()) {
           return "static_cast<float>(::google::protobuf::internal::Infinity())";
-        } else if (value == -numeric_limits<float>::infinity()) {
+        } else if (value == -std::numeric_limits<float>::infinity()) {
           return "static_cast<float>(-::google::protobuf::internal::Infinity())";
         } else if (value != value) {
           return "static_cast<float>(::google::protobuf::internal::NaN())";
@@ -415,7 +415,8 @@ string DefaultValue(const FieldDescriptor* field) {
         CEscape(field->default_value_string())) +
         "\"";
     case FieldDescriptor::CPPTYPE_MESSAGE:
-      return FieldMessageTypeName(field) + "::default_instance()";
+      return "*" + FieldMessageTypeName(field) +
+             "::internal_default_instance()";
   }
   // Can't actually get here; make compiler happy.  (We could add a default
   // case above but then we wouldn't get the nice compiler warning when a
@@ -444,9 +445,13 @@ string GlobalAddDescriptorsName(const string& filename) {
   return "protobuf_AddDesc_" + FilenameIdentifier(filename);
 }
 
+string GlobalInitDefaultsName(const string& filename) {
+  return "protobuf_InitDefaults_" + FilenameIdentifier(filename);
+}
+
 // Return the name of the AssignDescriptors() function for a given file.
-string GlobalAssignDescriptorsName(const string& filename) {
-  return "protobuf_AssignDesc_" + FilenameIdentifier(filename);
+string GlobalOffsetTableName(const string& filename) {
+  return "protobuf_Offsets_" + FilenameIdentifier(filename);
 }
 
 // Return the name of the ShutdownFile() function for a given file.
@@ -500,40 +505,6 @@ bool StaticInitializersForced(const FileDescriptor* file,
   return false;
 }
 
-void PrintHandlingOptionalStaticInitializers(
-    const FileDescriptor* file, const Options& options, io::Printer* printer,
-    const char* with_static_init, const char* without_static_init,
-    const char* var1, const string& val1, const char* var2,
-    const string& val2) {
-  map<string, string> vars;
-  if (var1) {
-    vars[var1] = val1;
-  }
-  if (var2) {
-    vars[var2] = val2;
-  }
-  PrintHandlingOptionalStaticInitializers(
-      vars, file, options, printer, with_static_init, without_static_init);
-}
-
-void PrintHandlingOptionalStaticInitializers(const map<string, string>& vars,
-                                             const FileDescriptor* file,
-                                             const Options& options,
-                                             io::Printer* printer,
-                                             const char* with_static_init,
-                                             const char* without_static_init) {
-  if (StaticInitializersForced(file, options)) {
-    printer->Print(vars, with_static_init);
-  } else {
-    printer->Print(vars, (string(
-      "#ifdef GOOGLE_PROTOBUF_NO_STATIC_INITIALIZER\n") +
-      without_static_init +
-      "#else\n" +
-      with_static_init +
-      "#endif\n").c_str());
-  }
-}
-
 
 static bool HasMapFields(const Descriptor* descriptor) {
   for (int i = 0; i < descriptor->field_count(); ++i) {
@@ -631,7 +602,7 @@ static Utf8CheckMode GetUtf8CheckMode(const FieldDescriptor* field,
 
 static void GenerateUtf8CheckCode(const FieldDescriptor* field,
                                   const Options& options, bool for_parse,
-                                  const map<string, string>& variables,
+                                  const std::map<string, string>& variables,
                                   const char* parameters,
                                   const char* strict_function,
                                   const char* verify_function,
@@ -681,7 +652,7 @@ static void GenerateUtf8CheckCode(const FieldDescriptor* field,
 
 void GenerateUtf8CheckCodeForString(const FieldDescriptor* field,
                                     const Options& options, bool for_parse,
-                                    const map<string, string>& variables,
+                                    const std::map<string, string>& variables,
                                     const char* parameters,
                                     io::Printer* printer) {
   GenerateUtf8CheckCode(field, options, for_parse, variables, parameters,
@@ -691,7 +662,7 @@ void GenerateUtf8CheckCodeForString(const FieldDescriptor* field,
 
 void GenerateUtf8CheckCodeForCord(const FieldDescriptor* field,
                                   const Options& options, bool for_parse,
-                                  const map<string, string>& variables,
+                                  const std::map<string, string>& variables,
                                   const char* parameters,
                                   io::Printer* printer) {
   GenerateUtf8CheckCode(field, options, for_parse, variables, parameters,