Linux: refactor zygote support

http://code.google.com/p/chromium/wiki/LinuxZygote

  * Move Chrome specific bits out of base
  * Move away from the idea of reserved file descriptors (which don't really work
  with zygotes)
  * Load resources before forking renderers (means that we don't need
  communication between the zygote process and the renderers)
  * Make sure that gdb works against the browser again
  * Make sure that we have different ASLR between the renderers and the browser.

http://codereview.chromium.org/119335

(This is a reland. First landed in r18109, reverted in r18112.)


git-svn-id: svn://svn.chromium.org/chrome/trunk/src@18291 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 0 insertions, 18 deletions

diff --git a/base/logging.cc b/base/logging.cc
index 77e9583..b5af671 100644
--- a/base/logging.cc
+++ b/base/logging.cc
@@ -19,12 +19,9 @@ typedef HANDLE MutexHandle;
 #endif
 
 #if defined(OS_POSIX)
-#include <fcntl.h>
 #include <stdlib.h>
 #include <stdio.h>
 #include <string.h>
-#include <sys/types.h>
-#include <sys/stat.h>
 #include <unistd.h>
 #define MAX_PATH PATH_MAX
 typedef FILE* FileHandle;
@@ -40,7 +37,6 @@ typedef pthread_mutex_t* MutexHandle;
 #include "base/command_line.h"
 #include "base/debug_util.h"
 #include "base/lock_impl.h"
-#include "base/reserved_file_descriptors.h"
 #include "base/string_piece.h"
 #include "base/string_util.h"
 #include "base/sys_string_conversions.h"
@@ -208,20 +204,6 @@ bool InitializeLogFileHandle() {
       }
     }
     SetFilePointer(log_file, 0, 0, FILE_END);
-#elif defined(OS_LINUX)
-    // Reserve global fd slots.
-    int reserved_fds[kReservedFds];
-    for (int i=0; i < kReservedFds; i++)
-      reserved_fds[i] = open("/dev/null", O_RDONLY, 0);
-
-    log_file = fopen(log_file_name->c_str(), "a");
-
-    // Release the reserved fds.
-    for (int i=0; i < kReservedFds; i++)
-      close(reserved_fds[i]);
-
-    if (log_file == NULL)
-      return false;
 #elif defined(OS_POSIX)
     log_file = fopen(log_file_name->c_str(), "a");
     if (log_file == NULL)