Add a crash key to record whether a windows machine is domain joined.

chrome/common/crash_keys.cc

Index: chrome/common/crash_keys.cc
diff --git a/chrome/common/crash_keys.cc b/chrome/common/crash_keys.cc
index ff0dc83ad891fb5e3127fb67e4685cd04eb6a19b..6e2eab0f08253500f0ee728b1dc92a7a08ee8652 100644
--- a/chrome/common/crash_keys.cc
+++ b/chrome/common/crash_keys.cc
@@ -58,6 +58,8 @@ const char kHungRendererReason[] = "hung-reason";
 
 const char kThirdPartyModulesLoaded[] = "third-party-modules-loaded";
 const char kThirdPartyModulesNotLoaded[] = "third-party-modules-not-loaded";
+
+const char kEnrolledToDomain[] = "enrolled-to-domain";
 #endif
 
 const char kInputEventFilterSendFailure[] = "input-event-filter-send-failure";
@@ -146,6 +148,7 @@ size_t RegisterChromeCrashKeys() {
     { kHungRendererReason, kSmallSize },
     { kThirdPartyModulesLoaded, kSmallSize },
     { kThirdPartyModulesNotLoaded, kSmallSize },
+    { kEnrolledToDomain, kSmallSize },
 #endif
     { kInputEventFilterSendFailure, kSmallSize },
 #if defined(OS_CHROMEOS)