Use system resources for share and websearch action bar.

BUG: 17403571
Change-Id: Ia2fab595694aa62578f3f771a322c2938662ba94
diff --git a/content/public/android/java/res/menu/select_action_menu.xml b/content/public/android/java/res/menu/select_action_menu.xml
index 65c729a..5f7e3da 100644
--- a/content/public/android/java/res/menu/select_action_menu.xml
+++ b/content/public/android/java/res/menu/select_action_menu.xml
@@ -37,13 +37,13 @@
         />
     <item
         android:id="@+id/select_action_menu_share"
-        android:icon="@drawable/ic_menu_share_holo_light"
+        android:icon="?android:attr/actionModeShareDrawable"
         android:title="@string/actionbar_share"
         android:showAsAction="always|withText"
         />
     <item
         android:id="@+id/select_action_menu_web_search"
-        android:icon="@drawable/ic_menu_search_holo_light"
+        android:icon="?android:attr/actionModeWebSearchDrawable"
         android:title="@string/actionbar_web_search"
         android:showAsAction="always|withText"
         />