Break out balsa and epoll_server from net/tools/flip_server.

net/tools/flip_server/mem_cache_test.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/flip_server/mem_cache.h"
 
-#include "net/tools/flip_server/balsa_headers.h"
+#include "net/tools/balsa/balsa_headers.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace net {
 
 namespace {
 
 class MemoryCacheWithFakeReadToString : public MemoryCache {
  public:
   virtual ~MemoryCacheWithFakeReadToString() {}
 
@@ skipping 71 matching lines @@
 
   mem_cache_->ReadAndStoreFileContents("./hello.http");
   hello_html = mem_cache_->GetFileData("hello.html");
   ASSERT_FALSE(NULL == hello_html);
   ASSERT_EQ(hello_html, mem_cache_->GetFileData("hello.http"));
 }
 
 }  // namespace
 
 }  // namespace net