Remove some dead NPAPI code after r363119.

content/child/multipart_response_delegate.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/child/multipart_response_delegate.h"
 
 #include "base/logging.h"
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "base/strings/string_number_conversions.h"
@@ skipping 268 matching lines @@
     if (boundary_pos >= 2) {
       if ('-' == data_[boundary_pos - 1] && '-' == data_[boundary_pos - 2]) {
         boundary_pos -= 2;
         boundary_ = "--" + boundary_;
       }
     }
   }
   return boundary_pos;
 }
 
-bool MultipartResponseDelegate::ReadMultipartBoundary(
-    const WebURLResponse& response,
-    std::string* multipart_boundary) {
-  std::string content_type =
-      response.httpHeaderField(WebString::fromUTF8("Content-Type")).utf8();
-
-  size_t boundary_start_offset = content_type.find("boundary=");
-  if (boundary_start_offset == std::string::npos)
-    return false;
-
-  boundary_start_offset += strlen("boundary=");
-
-  size_t boundary_end_offset = content_type.find(';', boundary_start_offset);
-
-  if (boundary_end_offset == std::string::npos)
-    boundary_end_offset = content_type.length();
-
-  size_t boundary_length = boundary_end_offset - boundary_start_offset;
-
-  *multipart_boundary =
-      content_type.substr(boundary_start_offset, boundary_length);
-  // The byte range response can have quoted boundary strings. This is legal
-  // as per MIME specifications. Individual data fragements however don't
-  // contain quoted boundary strings.
-  base::TrimString(*multipart_boundary, "\"", multipart_boundary);
-  return true;
-}
-
 bool MultipartResponseDelegate::ReadContentRanges(
     const WebURLResponse& response,
     int64_t* content_range_lower_bound,
     int64_t* content_range_upper_bound,
     int64_t* content_range_instance_size) {
   std::string content_range = response.httpHeaderField("Content-Range").utf8();
   if (content_range.empty()) {
     content_range = response.httpHeaderField("Range").utf8();
   }
 
@@ skipping 58 matching lines @@
   if (!base::StringToInt64(byte_range_upper_bound, content_range_upper_bound))
     return false;
   if (!base::StringToInt64(byte_range_instance_size,
                            content_range_instance_size)) {
     return false;
   }
   return true;
 }
 
 }  // namespace content