Hook up --pack-extension on Linux and FreeBSD.

chrome/chrome.gyp

Index: chrome/chrome.gyp
diff --git a/chrome/chrome.gyp b/chrome/chrome.gyp
index 6e5ee7cebeba1a890df5527b083a8c0965851b68..0a6350cd6f3f045335fddf9ace265766a345e63a 100755
--- a/chrome/chrome.gyp
+++ b/chrome/chrome.gyp
@@ -2339,7 +2339,7 @@
             'browser/views/extensions/extension_shelf.h',
             'browser/views/extensions/extension_view.cc',
             'browser/views/extensions/extension_view.h',
-                    # Windows-specific files.
+            # Windows-specific files.
             'browser/password_manager/password_store_win.cc',
             'browser/password_manager/password_store_win.h',
           ],
@@ -2392,6 +2392,8 @@
             'browser/bookmarks/bookmark_drop_info.cc',
             'browser/dock_info.cc',
             'browser/download/download_request_dialog_delegate_win.cc',
+            'browser/extensions/extension_creator.cc',
+            'browser/extensions/pack_extension_job.cc',
             'browser/jankometer.cc',
             'browser/password_manager/password_store_gnome.h',
             'browser/password_manager/password_store_gnome.cc',
@@ -2747,11 +2749,6 @@
                 ['exclude', '^browser/tab_contents/tab_contents_view_gtk.h'],
                 ['exclude', '^browser/tab_contents/render_view_context_menu_gtk.cc'],
                 ['exclude', '^browser/tab_contents/render_view_context_menu_gtk.h'],
-                # This compiles but has Linux shared build linking issues due to
-                # missing rsa_private_key functions.
-                ['exclude', '^browser/extensions/extension_creator.cc'],
-                # This compiles but it needs extension_creator.
-                ['exclude', '^browser/extensions/pack_extension_job.cc'],
               ],
             }],
             ['OS=="linux" and toolkit_views==0', {
@@ -2837,8 +2834,6 @@
             'browser/bookmarks/bookmark_menu_controller.h',
             'browser/browser_accessibility.cc',
             'browser/browser_accessibility_manager.cc',
-            'browser/extensions/extension_creator.cc',
-            'browser/extensions/pack_extension_job.cc',
             'browser/dom_ui/html_dialog_contents.cc',
             'browser/external_tab_container.cc',
             'browser/google_update.cc',