Enable zygote manager by default.

base/zygote_manager.h

 // Copyright (c) 2009 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.
 
 #ifndef BASE_ZYGOTE_MANAGER_H_
 #define BASE_ZYGOTE_MANAGER_H_
 
 #include "build/build_config.h"
 
 #if defined(OS_LINUX)
@@ skipping 11 matching lines @@
 #include "base/time.h"
 #include "base/process_util.h"  // for file_handle_mapping_vector
 
 namespace base {
 
 class ZygoteManager {
  public:
   // The normal way to get a ZygoteManager is via this singleton factory.
   static ZygoteManager* Get();
 
-  ZygoteManager() : server_fd_(-1), client_fd_(-1), canary_fd_(-1),
-      lockfd_(-1) {
+  ZygoteManager() :
+      server_fd_(-1), client_fd_(-1), canary_fd_(-1), lockfd_(-1) {
   }
 
   ~ZygoteManager();
 
   // Measure round trip time.  Return true on success.
   // Only used during testing.
   bool Ping(base::TimeDelta* delta);
 
   // Start the zygote manager.
   // Called only once, but returns many times.
@@ skipping 90 matching lines @@
   // server to open a file, as it might have been already
   // opened before this client was forked.
   std::map<std::string, int> cached_fds_;
 };
 
 }  // namespace base
 
 #endif  // defined(OS_LINUX)
 
 #endif  // BASE_ZYGOTE_MANAGER_H_