third_party/protobuf: Update to HEAD (83d681ee2c)

third_party/protobuf/src/google/protobuf/compiler/csharp/csharp_generator.h

 // 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.
@@ skipping 10 matching lines @@
 // 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.
 
+// Generates C# code for a given .proto file.
+
 #ifndef GOOGLE_PROTOBUF_COMPILER_CSHARP_GENERATOR_H__
 #define GOOGLE_PROTOBUF_COMPILER_CSHARP_GENERATOR_H__
 
 #include <string>
 
 #include <google/protobuf/compiler/code_generator.h>
 
 namespace google {
 namespace protobuf {
 namespace compiler {
 namespace csharp {
 
+// CodeGenerator implementation which generates a C# source file and
+// header.  If you create your own protocol compiler binary and you want
+// it to support C# output, you can do so by registering an instance of this
+// CodeGenerator with the CommandLineInterface in your main() function.
 class LIBPROTOC_EXPORT Generator
     : public google::protobuf::compiler::CodeGenerator {
   virtual bool Generate(
       const FileDescriptor* file,
       const string& parameter,
       GeneratorContext* generator_context,
       string* error) const;
 };
 
 }  // namespace csharp
 }  // namespace compiler
 }  // namespace protobuf
 }  // namespace google
 
 #endif  // GOOGLE_PROTOBUF_COMPILER_CSHARP_GENERATOR_H__