Initial implementation for sharing field trial state (win)

content/public/browser/browser_child_process_host.h

Index: content/public/browser/browser_child_process_host.h
diff --git a/content/public/browser/browser_child_process_host.h b/content/public/browser/browser_child_process_host.h
index e0f2d49e881a78627b62fb6215d6f8768d944da3..279d92e3da0e5fd3a6c00863ed900bc122fb141c 100644
--- a/content/public/browser/browser_child_process_host.h
+++ b/content/public/browser/browser_child_process_host.h
@@ -6,6 +6,7 @@
 #define CONTENT_PUBLIC_BROWSER_BROWSER_CHILD_PROCESS_HOST_H_
 
 #include "base/environment.h"
+#include "base/memory/shared_memory.h"
 #include "base/process/kill.h"
 #include "base/process/process_handle.h"
 #include "base/strings/string16.h"
@@ -65,6 +66,7 @@ class CONTENT_EXPORT BrowserChildProcessHost : public IPC::Sender {
   // Takes ownership of |cmd_line| and |delegate|.
   virtual void Launch(
       SandboxedProcessLauncherDelegate* delegate,
+      base::SharedMemory* field_trial_state,
       base::CommandLine* cmd_line,
       bool terminate_on_shutdown) = 0;