Give base::SharedMemory::CreateAnonymous an executable flag

content/common/child_process_sandbox_support_impl_linux.cc

 // Copyright (c) 2011 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/common/child_process_sandbox_support_impl_linux.h"
 
 #include <sys/stat.h>
 
 #include "base/eintr_wrapper.h"
 #include "base/global_descriptors_posix.h"
@@ skipping 65 matching lines @@
     out->hintStyle = hintStyle;
     out->useAntiAlias = useAntiAlias;
     out->useSubpixel = useSubpixel;
   }
 }
 
 int MakeSharedMemorySegmentViaIPC(size_t length, bool executable) {
   Pickle request;
   request.WriteInt(LinuxSandbox::METHOD_MAKE_SHARED_MEMORY_SEGMENT);
   request.WriteUInt32(length);
+  request.WriteBool(executable);
   uint8_t reply_buf[10];
   int result_fd;
   ssize_t result = UnixDomainSocket::SendRecvMsg(GetSandboxFD(),
                                                  reply_buf, sizeof(reply_buf),
                                                  &result_fd, request);
   if (result == -1)
     return -1;
   return result_fd;
 }
 
@@ skipping 83 matching lines @@
 
   *output_length = length;
   n = HANDLE_EINTR(pread(fd, output, length, offset));
   if (n != static_cast<ssize_t>(length))
     return false;
 
   return true;
 }
 
 }  // namespace content