Abstract TabContentsWrapper in sync.

BUG=
TEST=


Review URL: http://codereview.chromium.org/7491040

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@94438 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/chrome/chrome_browser.gypi b/chrome/chrome_browser.gypi
index cccb2a4e..76b6c58 100644
--- a/chrome/chrome_browser.gypi
+++ b/chrome/chrome_browser.gypi
@@ -2973,6 +2973,8 @@
         'browser/ui/tab_contents/tab_contents_wrapper.h',
         'browser/ui/tab_contents/tab_contents_wrapper_delegate.cc',
         'browser/ui/tab_contents/tab_contents_wrapper_delegate.h',
+        'browser/ui/tab_contents/tab_contents_wrapper_synced_tab_delegate.cc',
+        'browser/ui/tab_contents/tab_contents_wrapper_synced_tab_delegate.h',
         'browser/ui/tabs/dock_info.cc',
         'browser/ui/tabs/dock_info.h',
         'browser/ui/tabs/dock_info_gtk.cc',