Added chinese translation for sample text in Accessiblity.

CR-Fixed: 778291

Change-Id: I50dd2b0e55141559f3bd3bef440f15f4d434dbcd
diff --git a/res/values-zh-rCN/strings.xml b/res/values-zh-rCN/strings.xml
index a932568..5b81380 100644
--- a/res/values-zh-rCN/strings.xml
+++ b/res/values-zh-rCN/strings.xml
@@ -150,7 +150,7 @@
     <string name="max_url_character_limit_msg">"达到最大输入长度"</string>
     <string name="pref_do_not_track">"不跟踪"</string>
     <string name="pref_do_not_track_summary">"随浏览流量发送"请勿跟踪"请求"</string>
-
+    <string name="pref_sample_font_size">"拖动该滑块,将文字调整到适合您阅读的大小。点按两次某段落后,文字至少应该显示为这样的字体大小。"</string>
 
   <string-array name="pref_content_plugins_choices">
     <item msgid="6745108155096660725">"始终启用(打开)"</item>