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


git-svn-id: svn://svn.chromium.org/chrome/trunk/src@18109 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 6 insertions, 0 deletions

diff --git a/chrome/common/chrome_switches.cc b/chrome/common/chrome_switches.cc
index 48511d3..e5bce97 100644
--- a/chrome/common/chrome_switches.cc
+++ b/chrome/common/chrome_switches.cc
@@ -63,6 +63,9 @@ const wchar_t kHomePage[]                      = L"homepage";
 // Causes the process to run as renderer instead of as browser.
 const wchar_t kRendererProcess[]               = L"renderer";
 
+// Causes the process to run as a renderer zygote.
+const wchar_t kZygoteProcess[]                 = L"zygote";
+
 // Path to the exe to run for the renderer and plugin subprocesses.
 const wchar_t kBrowserSubprocessPath[]         = L"browser-subprocess-path";
 
@@ -490,6 +493,9 @@ const wchar_t kNoDefaultBrowserCheck[]         = L"no-default-browser-check";
 // Enables the benchmarking extensions.
 const wchar_t kEnableBenchmarking[]      = L"enable-benchmarking";
 
+// The prefix used when starting the zygote process. (i.e. 'gdb --args')
+const wchar_t kZygoteCmdPrefix[] = L"zygote-cmd-prefix";
+
 // Enables using ThumbnailStore instead of ThumbnailDatabase for setting and
 // getting thumbnails for the new tab page.
 const wchar_t kThumbnailStore[]                = L"thumbnail-store";