Ignore getApplicationRestrictions SecurityException

There are a few reports on esoteric android devices where
getApplicationRestrictions may throw SecurityException even though it is
not documented behavior. Just ignore them.

Bug: 886814
Change-Id: Ife0c91f3516ec022912bfb2dc99cfc69ba25f186
Reviewed-on: https://chromium-review.googlesource.com/1235118Reviewed-by: Bartosz Fabianowski <bartfab@chromium.org>
Commit-Queue: Bo <boliu@chromium.org>
Cr-Commit-Position: refs/heads/master@{#592793}

components/policy/android/java/src/org/chromium/policy/AppRestrictionsProvider.java

@@ -33,7 +33,12 @@ public class AppRestrictionsProvider extends AbstractAppRestrictionsProvider {
     @TargetApi(Build.VERSION_CODES.JELLY_BEAN_MR2)
     protected Bundle getApplicationRestrictions(String packageName) {
         if (mUserManager == null) return new Bundle();
-        return mUserManager.getApplicationRestrictions(packageName);
+        try {
+            return mUserManager.getApplicationRestrictions(packageName);
+        } catch (SecurityException e) {
+            // Android bug may throw SecurityException. See crbug.com/886814.
+            return new Bundle();
+        }
     }
 
     @Override