Start making a vertical tabstrip. Does nothing right now.

The option to enable the vertical tabstrip will appear when Chrome is run with:

--enable-vertical-tabs

and a pref is set. There is presently no UI to set this pref.

http://crbug.com/34509
TEST=none

Review URL: http://codereview.chromium.org/561004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@38076 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/chrome/chrome_browser.gypi b/chrome/chrome_browser.gypi
index 8ced6dc4..84f010b 100755
--- a/chrome/chrome_browser.gypi
+++ b/chrome/chrome_browser.gypi
@@ -1965,6 +1965,10 @@
         'browser/views/tabs/native_view_photobooth_gtk.h',
         'browser/views/tabs/native_view_photobooth_win.cc',
         'browser/views/tabs/native_view_photobooth_win.h',
+        'browser/views/tabs/side_tab.cc',
+        'browser/views/tabs/side_tab.h',
+        'browser/views/tabs/side_tab_strip.cc',
+        'browser/views/tabs/side_tab_strip.h',
         'browser/views/tabs/tab.cc',
         'browser/views/tabs/tab.h',
         'browser/views/tabs/tab_overview_cell.cc',