Cancel a screenshot notification after a share target is chosen.

Use the (relatively) new API for supplying a callback when a user
makes a selection from the system ChooserActivity to clear out the
screenshot notification after it has been shared to another app.

Change-Id: If023a26d690c5ae8e29f28e2422f694ae4b654cb
diff --git a/packages/SystemUI/AndroidManifest.xml b/packages/SystemUI/AndroidManifest.xml
index a8a4baa..24f6931 100644
--- a/packages/SystemUI/AndroidManifest.xml
+++ b/packages/SystemUI/AndroidManifest.xml
@@ -208,6 +208,10 @@
             </intent-filter>
         </receiver>
 
+        <!-- Callback for dismissing screenshot notification after a share target is picked -->
+        <receiver android:name=".screenshot.GlobalScreenshot$TargetChosenReceiver"
+                  android:exported="false" />
+
         <!-- started from UsbDeviceSettingsManager -->
         <activity android:name=".usb.UsbConfirmActivity"
             android:exported="true"