Move print rendering in an isolated process.

Security review of the PDF rendering code revealed that it is
not sercure. Therefore, this code must be run in a sandbox.
This change moves the rendering code in an isolated process.

bug:16897933

Change-Id: I711ce42a56892db1837950137bfaa79e1d61a7c4
diff --git a/packages/PrintSpooler/AndroidManifest.xml b/packages/PrintSpooler/AndroidManifest.xml
index 540a2f3..9efda2f 100644
--- a/packages/PrintSpooler/AndroidManifest.xml
+++ b/packages/PrintSpooler/AndroidManifest.xml
@@ -53,6 +53,11 @@
             android:permission="android.permission.BIND_PRINT_SPOOLER_SERVICE">
         </service>
 
+        <service
+            android:name=".renderer.PdfRendererService"
+            android:isolatedProcess="true">
+        </service>
+
         <activity
             android:name=".ui.PrintActivity"
             android:configChanges="orientation|screenSize"