Support asynchronous patching operations in the component updater.

chrome/browser/component_updater/test/component_patcher_mock.h

Index: chrome/browser/component_updater/test/component_patcher_mock.h
diff --git a/chrome/browser/component_updater/test/component_patcher_mock.h b/chrome/browser/component_updater/test/component_patcher_mock.h
index 1843b295dfe63958e45763865533c0202d84266b..7f61f6f0410b3c86a8daa383c406285b9101182a 100644
--- a/chrome/browser/component_updater/test/component_patcher_mock.h
+++ b/chrome/browser/component_updater/test/component_patcher_mock.h
@@ -16,7 +16,7 @@ class FilePath;
 class MockComponentPatcher : public ComponentPatcher {
  public:
   MockComponentPatcher() {}
-  virtual ComponentUnpacker::Error Patch(PatchType patch_type,
+  virtual component_updater::Error Patch(PatchType patch_type,
                                          const base::FilePath& input_file,
                                          const base::FilePath& patch_file,
                                          const base::FilePath& output_file,