This adds some plumbing for propagating the reason for a renderer's death

chrome/browser/zygote_host_linux.cc

Index: chrome/browser/zygote_host_linux.cc
diff --git a/chrome/browser/zygote_host_linux.cc b/chrome/browser/zygote_host_linux.cc
index 74b68529700229315a599a02bf1c4135a44e506d..e4e7ce3da4f8f4570b79777ab34465e696af494b 100644
--- a/chrome/browser/zygote_host_linux.cc
+++ b/chrome/browser/zygote_host_linux.cc
@@ -27,6 +27,7 @@
 #include "chrome/common/chrome_constants.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/process_watcher.h"
+#include "chrome/common/result_codes.h"
 
 #include "sandbox/linux/suid/suid_unsafe_environment_variables.h"
 
@@ -316,13 +317,18 @@ void ZygoteHost::EnsureProcessTerminated(pid_t process) {
     PLOG(ERROR) << "write";
 }
 
-bool ZygoteHost::DidProcessCrash(base::ProcessHandle handle,
-                                 bool* child_exited) {
+base::TerminationStatus ZygoteHost::GetTerminationStatus(
+    base::ProcessHandle handle,
+    int* exit_code) {
   DCHECK(init_);
   Pickle pickle;
-  pickle.WriteInt(kCmdDidProcessCrash);
+  pickle.WriteInt(kCmdGetTerminationStatus);
   pickle.WriteInt(handle);
 
+  // Set this now to handle the early termination cases.
+  if (exit_code)
+    *exit_code = ResultCodes::NORMAL_EXIT;
+
   static const unsigned kMaxMessageLength = 128;
   char buf[kMaxMessageLength];
   ssize_t len;
@@ -336,23 +342,23 @@ bool ZygoteHost::DidProcessCrash(base::ProcessHandle handle,
 
   if (len == -1) {
     LOG(WARNING) << "Error reading message from zygote: " << errno;
-    return false;
+    return base::TERMINATION_STATUS_NORMAL_TERMINATION;
   } else if (len == 0) {
     LOG(WARNING) << "Socket closed prematurely.";
-    return false;
+    return base::TERMINATION_STATUS_NORMAL_TERMINATION;
   }
 
   Pickle read_pickle(buf, len);
-  bool did_crash, tmp_child_exited;
+  int status, tmp_exit_code;
   void* iter = NULL;
-  if (!read_pickle.ReadBool(&iter, &did_crash) ||
-      !read_pickle.ReadBool(&iter, &tmp_child_exited)) {
-    LOG(WARNING) << "Error parsing DidProcessCrash response from zygote.";
-    return false;
+  if (!read_pickle.ReadInt(&iter, &status) ||
+      !read_pickle.ReadInt(&iter, &tmp_exit_code)) {
+    LOG(WARNING) << "Error parsing GetTerminationStatus response from zygote.";
+    return base::TERMINATION_STATUS_NORMAL_TERMINATION;
   }
 
-  if (child_exited)
-    *child_exited = tmp_child_exited;
+  if (exit_code)
+    *exit_code = tmp_exit_code;
 
-  return did_crash;
+  return static_cast<base::TerminationStatus>(status);
 }