Remove base/port.h includes that are not necessary anymore.

net/tools/balsa/balsa_frame.cc

 // Copyright 2013 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 "net/tools/balsa/balsa_frame.h"
 
 // Visual C++ defines _M_IX86_FP as 2 if the /arch:SSE2 compiler option is
 // specified.
 #if !defined(__SSE2__) && _M_IX86_FP == 2
 #define __SSE2__ 1
 #endif
 
 #include <assert.h>
 #if __SSE2__
 #include <emmintrin.h>
 #endif  // __SSE2__
 
 #include <limits>
 #include <string>
 #include <utility>
 #include <vector>
 
 #include "base/logging.h"
-#include "base/port.h"
 #include "base/strings/string_piece.h"
 #include "net/tools/balsa/balsa_enums.h"
 #include "net/tools/balsa/balsa_headers.h"
 #include "net/tools/balsa/balsa_visitor_interface.h"
 #include "net/tools/balsa/buffer_interface.h"
 #include "net/tools/balsa/simple_buffer.h"
 #include "net/tools/balsa/split.h"
 #include "net/tools/balsa/string_piece_utils.h"
 
 #if defined(COMPILER_MSVC)
@@ skipping 1532 matching lines @@
     << "$$$$$$$$$$$$$$$"
     << " consumed: " << (current - input);
   if (Error()) {
     LOG(INFO) << BalsaFrameEnums::ErrorCodeToString(ErrorCode());
   }
 #endif  // DEBUGFRAMER
   return current - input;
 }
 
 }  // namespace net