NEW_API: Expose includeInGlobalSearch searchable attribute

If this attribute is provided and true, the searchable activity will be
included in any global lists of search targets.

This is needed to support third-party suggestion providers in
global search. See http://b/issue?id=1819651

api/current.xml

@@ -3914,6 +3914,17 @@
  visibility="public"
 >
 </field>
+<field name="includeInGlobalSearch"
+ type="int"
+ transient="false"
+ volatile="false"
+ value="16843374"
+ static="true"
+ final="true"
+ deprecated="not deprecated"
+ visibility="public"
+>
+</field>
 <field name="indeterminate"
  type="int"
  transient="false"

core/res/res/values/public.xml

@@ -1095,6 +1095,7 @@
    <public type="attr" name="extraTension" id="0x0101026b" />
    <public type="attr" name="density" id="0x0101026c" />
    <public type="attr" name="searchSuggestThreshold" id="0x0101026d" />
+   <public type="attr" name="includeInGlobalSearch" id="0x0101026e" />
 
    <public type="anim" name="anticipate_interpolator" id="0x010a0007" />
    <public type="anim" name="overshoot_interpolator" id="0x010a0008" />