The builders should build sync_unit_tests.

Review URL: http://codereview.chromium.org/235044

git-svn-id: http://src.chromium.org/svn/trunk/src/build@27441 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

all.gyp

@@ -149,6 +149,7 @@
             '../chrome/chrome.gyp:page_cycler_tests',
             '../chrome/chrome.gyp:plugin_tests',
             '../chrome/chrome.gyp:startup_tests',
+            '../chrome/chrome.gyp:sync_unit_tests',
             '../chrome/chrome.gyp:tab_switching_test',
             '../chrome/chrome.gyp:ui_tests',
             '../chrome/chrome.gyp:unit_tests',