Make certificate manager touch friendly.

BUG=117186
TEST=


Review URL: http://codereview.chromium.org/10217006

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@133782 0039d316-1c4b-4281-b951-d872f2087c98

chrome/browser/resources/shared/css/chrome_shared2_touch.css

@@ -38,3 +38,7 @@ select {
   margin-bottom: 6px;
   margin-top: 6px;
 }
+
+html[touch-optimized] .tree-item > .tree-row {
+  padding: 4px 3px;
+}