Allow relative paths to external extension files for some providers, error out for others.

This change will enable a fix for issue 57289, which requires a different base directory for extensions.

BUG=70111
TEST=ExtensionServiceTest.ExternalPrefProvider

Review URL: http://codereview.chromium.org/6293006

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@71792 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/chrome/browser/extensions/extension_service.cc b/chrome/browser/extensions/extension_service.cc
index 06290c7..790071b9 100644
--- a/chrome/browser/extensions/extension_service.cc
+++ b/chrome/browser/extensions/extension_service.cc
@@ -408,10 +408,10 @@
 }
 
 ExtensionService::ExtensionService(Profile* profile,
-                                     const CommandLine* command_line,
-                                     const FilePath& install_directory,
-                                     ExtensionPrefs* extension_prefs,
-                                     bool autoupdate_enabled)
+                                   const CommandLine* command_line,
+                                   const FilePath& install_directory,
+                                   ExtensionPrefs* extension_prefs,
+                                   bool autoupdate_enabled)
     : profile_(profile),
       extension_prefs_(extension_prefs),
       install_directory_(install_directory),