Add TODO to implement 'bookmarking' for the streaming stream.

src/scanner-character-streams.h

 // Copyright 2011 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_SCANNER_CHARACTER_STREAMS_H_
 #define V8_SCANNER_CHARACTER_STREAMS_H_
 
 #include "src/scanner.h"
 
 namespace v8 {
@@ skipping 65 matching lines @@
   size_t raw_data_length_;  // Measured in bytes, not characters.
   size_t raw_data_pos_;
   // The character position of the character at raw_data[raw_data_pos_].
   // Not necessarily the same as pos_.
   size_t raw_character_position_;
 };
 
 
 // ExternalStreamingStream is a wrapper around an ExternalSourceStream (see
 // include/v8.h) subclass implemented by the embedder.
+//
+// TODO(vogelheim): Implement (Set|ResetTo)Bookmark methods for this stream.
 class ExternalStreamingStream : public BufferedUtf16CharacterStream {
  public:
   ExternalStreamingStream(ScriptCompiler::ExternalSourceStream* source_stream,
                           v8::ScriptCompiler::StreamedSource::Encoding encoding)
       : source_stream_(source_stream),
         encoding_(encoding),
         current_data_(NULL),
         current_data_offset_(0),
         current_data_length_(0),
         utf8_split_char_buffer_length_(0) {}
@@ skipping 56 matching lines @@
 
  private:
   static const size_t kNoBookmark = -1;
 
   size_t bookmark_;
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_SCANNER_CHARACTER_STREAMS_H_