Remove implicit HANDLE conversions from chrome.

chrome/utility/importer/ie_importer_win.cc

Index: chrome/utility/importer/ie_importer_win.cc
diff --git a/chrome/utility/importer/ie_importer_win.cc b/chrome/utility/importer/ie_importer_win.cc
index fbefb18b3a1555b82b4a7b0c881a126ffc35548d..486997ddc96cfe31e505ba97fabac26da40208af 100644
--- a/chrome/utility/importer/ie_importer_win.cc
+++ b/chrome/utility/importer/ie_importer_win.cc
@@ -72,7 +72,9 @@ base::Time GetFileCreationTime(const base::string16& file) {
                  NULL, OPEN_EXISTING,
                  FILE_ATTRIBUTE_NORMAL | FILE_FLAG_BACKUP_SEMANTICS, NULL));
   FILETIME creation_filetime;
-  if (GetFileTime(file_handle, &creation_filetime, NULL, NULL))
+  if (!file_handle.IsValid())
+    return creation_time;
+  if (GetFileTime(file_handle.Get(), &creation_filetime, NULL, NULL))
     creation_time = base::Time::FromFileTime(creation_filetime);
   return creation_time;
 }