Fix a possible crash introduced by r46412 by not accessing the result variabl...

chrome/browser/password_manager/password_store_default.cc

Index: chrome/browser/password_manager/password_store_default.cc
===================================================================
--- chrome/browser/password_manager/password_store_default.cc	(revision 46560)
+++ chrome/browser/password_manager/password_store_default.cc	(working copy)
@@ -116,17 +116,16 @@
     WebDataService::Handle handle,
     const WDTypedResult* result) {
   DCHECK(handles_.end() != handles_.find(handle));
-  DCHECK(result);
 
+  handles_.erase(handle);
+  if (!result)
+    return;
+
   if (PASSWORD_RESULT != result->GetType()) {
     NOTREACHED();
     return;
   }
 
-  handles_.erase(handle);
-  if (!result)
-    return;
-
   const PasswordForms& forms =
       static_cast<const WDResult<PasswordForms>*>(result)->GetValue();
   for (PasswordForms::const_iterator it = forms.begin();