Add epub mime type.

net/base/mime_util.cc

 // Copyright (c) 2012 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 <algorithm>
 #include <iterator>
 #include <map>
 #include <string>
 
 #include "base/containers/hash_tables.h"
@@ skipping 208 matching lines @@
   { "text/plain", "txt,text" },
   { "text/html", "ehtml" },
   { "application/rss+xml", "rss" },
   { "application/rdf+xml", "rdf" },
   { "text/xml", "xsl,xbl,xslt" },
   { "application/vnd.mozilla.xul+xml", "xul" },
   { "application/x-shockwave-flash", "swf,swl" },
   { "application/pkcs7-mime", "p7m,p7c,p7z" },
   { "application/pkcs7-signature", "p7s" },
   { "application/x-mpegurl", "m3u8" },
+  { "application/epub+zip", "epub" },

[eroman, 2015/04/06 19:10:18]

Is there any details that you can provide on this mimetype? (what registry does
it appear in?)

[yawano, 2015/04/07 02:00:40]

application/epub+zip appears in IANA Media Types.

http://www.iana.org/assignments/media-types/media-types.xhtml

 };
 
 static const char* FindMimeType(const MimeInfo* mappings,
                                 size_t mappings_len,
                                 const char* ext) {
   size_t ext_len = strlen(ext);
 
   for (size_t i = 0; i < mappings_len; ++i) {
     const char* extensions = mappings[i].extensions;
     for (;;) {
@@ skipping 1170 matching lines @@
   post_data->append("\r\n" + value + "\r\n");
 }
 
 void AddMultipartFinalDelimiterForUpload(const std::string& mime_boundary,
                                          std::string* post_data) {
   DCHECK(post_data);
   post_data->append("--" + mime_boundary + "--\r\n");
 }
 
 }  // namespace net