Remove MaxSharedMemorySize() function from SysInfo

content/zygote/zygote_main_linux.cc

 // Copyright (c) 2012 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 "content/zygote/zygote_main.h"
 
 #include <dlfcn.h>
 #include <fcntl.h>
 #include <openssl/crypto.h>
 #include <openssl/rand.h>
@@ skipping 311 matching lines @@
   }
 }
 #endif
 
 // This function triggers the static and lazy construction of objects that need
 // to be created before imposing the sandbox.
 static void ZygotePreSandboxInit() {
   base::RandUint64();
 
   base::SysInfo::AmountOfPhysicalMemory();
-  base::SysInfo::MaxSharedMemorySize();
   base::SysInfo::NumberOfProcessors();
 
   // ICU DateFormat class (used in base/time_format.cc) needs to get the
   // Olson timezone ID by accessing the zoneinfo files on disk. After
   // TimeZone::createDefault is called once here, the timezone ID is
   // cached and there's no more need to access the file system.
   std::unique_ptr<icu::TimeZone> zone(icu::TimeZone::createDefault());
 
 #if defined(ARCH_CPU_ARM_FAMILY)
   // On ARM, BoringSSL requires access to /proc/cpuinfo to determine processor
@@ skipping 301 matching lines @@
   const bool namespace_sandbox_engaged = sandbox_flags & kSandboxLinuxUserNS;
   CHECK_EQ(using_namespace_sandbox, namespace_sandbox_engaged);
 
   Zygote zygote(sandbox_flags, std::move(fork_delegates), extra_children,
                 extra_fds);
   // This function call can return multiple times, once per fork().
   return zygote.ProcessRequests();
 }
 
 }  // namespace content