Delete multipart.h.

webrtc/BUILD.gn

 # Copyright (c) 2014 The WebRTC 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 in the root of the source
 # tree. An additional intellectual property rights grant can be found
 # in the file PATENTS.  All contributing project authors may
 # be found in the AUTHORS file in the root of the source tree.
 
 # TODO(kjellander): Rebase this to webrtc/build/common.gypi changes after r6330.
 
@@ skipping 375 matching lines @@
       "base/helpers_unittest.cc",
       "base/httpbase_unittest.cc",
       "base/httpcommon_unittest.cc",
       "base/httpserver_unittest.cc",
       "base/ipaddress_unittest.cc",
       "base/logging_unittest.cc",
       "base/md5digest_unittest.cc",
       "base/messagedigest_unittest.cc",
       "base/messagequeue_unittest.cc",
       "base/mod_ops_unittest.cc",
-      "base/multipart_unittest.cc",
       "base/nat_unittest.cc",
       "base/network_unittest.cc",
       "base/onetimeevent_unittest.cc",
       "base/optional_unittest.cc",
       "base/optionsfile_unittest.cc",
       "base/pathutils_unittest.cc",
       "base/platform_thread_unittest.cc",
       "base/profiler_unittest.cc",
       "base/proxy_unittest.cc",
       "base/proxydetect_unittest.cc",
@@ skipping 412 matching lines @@
       ]
 
       deps = [
         "//webrtc/api:libjingle_peerconnection_java",
         "//webrtc/api:libjingle_peerconnection_jni",
         "//webrtc/examples:AppRTCMobile_javalib",
       ]
     }
   }
 }