Check for updates for a user script only if it has an update URL.

chrome/browser/sync/glue/extension_util_unittest.cc

 // Copyright (c) 2010 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/sync/glue/extension_util.h"
 
 #include "base/file_path.h"
 #include "base/values.h"
 #include "base/version.h"
 #include "chrome/browser/sync/protocol/extension_specifics.pb.h"
@@ skipping 76 matching lines @@
   {
     FilePath file_path(kExtensionFilePath);
     Extension extension(file_path);
     MakePossiblySyncableExtension(false, GURL(kValidUpdateUrl1), GURL(),
                                   true, Extension::INTERNAL, 0, &extension);
     EXPECT_TRUE(IsExtensionSyncable(extension));
   }
   {
     FilePath file_path(kExtensionFilePath);
     Extension extension(file_path);
+    MakePossiblySyncableExtension(false, GURL(kValidUpdateUrl1), GURL(), true,
+                                  Extension::INTERNAL, 0, &extension);
+    EXPECT_TRUE(IsExtensionSyncable(extension));
+  }
+  {
+    FilePath file_path(kExtensionFilePath);
+    Extension extension(file_path);
     MakePossiblySyncableExtension(false, GURL(), GURL(), true,
                                   Extension::INTERNAL, 0, &extension);
-    EXPECT_TRUE(IsExtensionSyncable(extension));
+    EXPECT_FALSE(IsExtensionSyncable(extension));
   }
   {
     FilePath file_path(kExtensionFilePath);
     Extension extension(file_path);
     MakePossiblySyncableExtension(true, GURL(), GURL(), false,
                                   Extension::INTERNAL, 0, &extension);
     EXPECT_FALSE(IsExtensionSyncable(extension));
   }
   // TODO(akalin): Test with a non-empty launch_url once apps are
   // enabled by default.
@@ skipping 357 matching lines @@
   {
     sync_pb::ExtensionSpecifics result = merged_specifics;
     MergeExtensionSpecifics(specifics, true, &result);
     EXPECT_TRUE(AreExtensionSpecificsEqual(result, specifics));
   }
 }
 
 }  // namespace
 
 }  // namespace browser_sync