Remove fragile check in DidProcessCrash

- the numbers were out of sync with result_codes.h
- can't use result_codes.h in base project so I extracted
the generic part of it.

Rahul: I hope I don't break installer assumptions here.
Dan: don't feel obligated to review.

Review URL: http://codereview.chromium.org/9012

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@4519 0039d316-1c4b-4281-b951-d872f2087c98

base/process_util.h

@@ -46,13 +46,22 @@ struct IoCounters {
 
 namespace process_util {
 
+// A minimalistic but hopefully cross-platform set of exit codes.
+// Do not change the enumeration values or you will break third-party
+// installers.
+enum {
+  PROCESS_END_NORMAL_TERMINATON = 0,
+  PROCESS_END_KILLED_BY_USER    = 1,
+  PROCESS_END_PROCESS_WAS_HUNG  = 2
+};
+
 // Returns the id of the current process.
 int GetCurrentProcId();
 
 // Returns the ProcessHandle of the current process.
 ProcessHandle GetCurrentProcessHandle();
 
-// Returns the unique ID for the specified process.  This is functionally the
+// Returns the unique ID for the specified process. This is functionally the
 // same as Windows' GetProcessId(), but works on versions of Windows before
 // Win XP SP1 as well.
 int GetProcId(ProcessHandle process);

base/process_util_win.cc

@@ -187,10 +187,9 @@ bool DidProcessCrash(ProcessHandle handle) {
   // Warning, this is not generic code; it heavily depends on the way
   // the rest of the code kills a process.
   
-  if (exitcode == 0 ||              // Normal termination.
+  if (exitcode == PROCESS_END_NORMAL_TERMINATON ||
-      exitcode == 1 ||              // Killed by task manager.
+      exitcode == PROCESS_END_KILLED_BY_USER ||
-      exitcode == 14 ||             // Killed because of a bad message.
+      exitcode == PROCESS_END_PROCESS_WAS_HUNG ||
-      exitcode == 16 ||             // Killed by hung detector (see ResultCodes)
       exitcode == 0xC0000354 ||     // STATUS_DEBUGGER_INACTIVE.
       exitcode == 0xC000013A ||     // Control-C/end session.
       exitcode == 0x40010004) {     // Debugger terminated process/end session.

chrome/app/result_codes.h

@@ -5,6 +5,8 @@
 #ifndef CHROME_APP_RESULT_CODES_H__
 #define CHROME_APP_RESULT_CODES_H__
 
+#include "base/process_util.h"
+
 // This file consolidates all the return codes for the browser and renderer
 // process. The return code is the value that:
 // a) is returned by main() or winmain(), or
@@ -18,7 +20,9 @@
 class ResultCodes {
  public:
   enum ExitCode {
-    NORMAL_EXIT = 0,            // Normal termination. Keep it *always* zero.
+    NORMAL_EXIT = process_util::PROCESS_END_NORMAL_TERMINATON,
+    TASKMAN_KILL = process_util::PROCESS_END_KILLED_BY_USER,
+    HUNG = process_util::PROCESS_END_PROCESS_WAS_HUNG,
     INVALID_CMDLINE_URL,        // An invalid command line url was given.
     SBOX_INIT_FAILED,           // The sandbox could not be initialized.
     GOOGLE_UPDATE_INIT_FAILED,  // The Google Update client stub init failed.
@@ -35,7 +39,6 @@ class ResultCodes {
     UNSUPPORTED_PARAM,          // Command line parameter is not supported.
     KILLED_BAD_MESSAGE,         // A bad message caused the process termination.
     IMPORTER_CANCEL,            // The user canceled the browser import.
-    HUNG,                       // Browser was hung and killed.
     IMPORTER_HUNG,              // Browser import hung and was killed.
     EXIT_LAST_CODE              // Last return code (keep it last).
   };