Fix includes to unbreak the Windows build.

runtime/vm/heap_profiler_test.cc

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-#include <arpa/inet.h>
-#include <sys/time.h>
-
-
 #include "vm/heap_profiler.h"
 #include "vm/growable_array.h"
 #include "vm/unit_test.h"
 
 namespace dart {
 
 static void WriteCallback(const void* data, intptr_t length, void* stream) {
   GrowableArray<uint8_t>* array =
       reinterpret_cast<GrowableArray<uint8_t>*>(stream);
   for (intptr_t i = 0; i < length; ++i) {
@@ skipping 93 matching lines @@
     EXPECT_GE(after, time + time_diff);
     // Check length diff
     uint32_t length = Read32(&array, &i);
     EXPECT_LE((intptr_t)length + i , array.length());
     // skip body
     i += length;
   }
 }
 
 }  // namespace dart