Getting service process on Mac to handle having things moved/changed underneath it.

chrome/common/service_process_util_posix.h

Index: chrome/common/service_process_util_posix.h
diff --git a/chrome/common/service_process_util_posix.h b/chrome/common/service_process_util_posix.h
index 42b0a31564ce802213d01781fb7e23e7ea759eaf..8f01faa4f1cccdb1159fbc9e5c2e77a49de8b192 100644
--- a/chrome/common/service_process_util_posix.h
+++ b/chrome/common/service_process_util_posix.h
@@ -20,7 +20,9 @@ MultiProcessLock* TakeServiceRunningLock(bool waiting);
 #endif  // OS_LINUX
 
 #if defined(OS_MACOSX)
+#include "base/file_path_component_watcher.h"
 #include "base/mac/scoped_cftyperef.h"
+
 class CommandLine;
 CFDictionaryRef CreateServiceProcessLaunchdPlist(CommandLine* cmd_line,
                                                  bool for_auto_launch);
@@ -58,6 +60,7 @@ struct ServiceProcessState::StateData
 
 #if defined(OS_MACOSX)
   base::mac::ScopedCFTypeRef<CFDictionaryRef> launchd_conf_;
+  base::FilePathComponentWatcher executable_watcher_;
 #endif  // OS_MACOSX
 #if defined(OS_LINUX)
   scoped_ptr<MultiProcessLock> initializing_lock_;