Improve process launch handle sharing API.

content/browser/zygote_host/zygote_communication_linux.h

Index: content/browser/zygote_host/zygote_communication_linux.h
diff --git a/content/browser/zygote_host/zygote_communication_linux.h b/content/browser/zygote_host/zygote_communication_linux.h
index 2b5340386c7d52aa5c277b195e84e69a7ad959f3..3add2ea24e8056501bde7589f62bc625fd75742b 100644
--- a/content/browser/zygote_host/zygote_communication_linux.h
+++ b/content/browser/zygote_host/zygote_communication_linux.h
@@ -17,7 +17,7 @@
 #include "base/process/process_handle.h"
 #include "base/synchronization/lock.h"
 #include "content/common/content_export.h"
-#include "content/public/browser/file_descriptor_info.h"
+#include "content/public/browser/posix_file_descriptor_info.h"
 
 namespace base {
 class Pickle;
@@ -38,7 +38,7 @@ class CONTENT_EXPORT ZygoteCommunication {
   // Tries to start a process of type indicated by process_type.
   // Returns its pid on success, otherwise base::kNullProcessHandle;
   pid_t ForkRequest(const std::vector<std::string>& command_line,
-                    std::unique_ptr<FileDescriptorInfo> mapping,
+                    std::unique_ptr<PosixFileDescriptorInfo> mapping,
                     const std::string& process_type);
 
   void EnsureProcessTerminated(pid_t process);