Componentize component_updater: Move over a bunch of files to the component.

components/component_updater/crx_downloader.h

Index: components/component_updater/crx_downloader.h
diff --git a/chrome/browser/component_updater/crx_downloader.h b/components/component_updater/crx_downloader.h
similarity index 96%
rename from chrome/browser/component_updater/crx_downloader.h
rename to components/component_updater/crx_downloader.h
index f1ffa7b0ce398ac00a9f0e52c13684125f0fbeb7..976347c8e8cee4927e17b62fb1f3b7d573faa901 100644
--- a/chrome/browser/component_updater/crx_downloader.h
+++ b/components/component_updater/crx_downloader.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef CHROME_BROWSER_COMPONENT_UPDATER_CRX_DOWNLOADER_H_
-#define CHROME_BROWSER_COMPONENT_UPDATER_CRX_DOWNLOADER_H_
+#ifndef COMPONENTS_COMPONENT_UPDATER_CRX_DOWNLOADER_H_
+#define COMPONENTS_COMPONENT_UPDATER_CRX_DOWNLOADER_H_
 
 #include <vector>
 
@@ -152,4 +152,4 @@ class CrxDownloader {
 
 }  // namespace component_updater
 
-#endif  // CHROME_BROWSER_COMPONENT_UPDATER_CRX_DOWNLOADER_H_
+#endif  // COMPONENTS_COMPONENT_UPDATER_CRX_DOWNLOADER_H_