Bug 1283881 - Add PartnerBrowserCustomizationsClient for reading customizations from Android's "partner browser customizations" content provider. r=grisha

MozReview-Commit-ID: 3qVXGHC6LfE

--HG--
extra : rebase_source : 29d545e4e6ac606558a4f4cdf3f8f474d0606af0

mobile/android/base/java/org/mozilla/gecko/distribution/PartnerBrowserCustomizationsClient.java

@@ -0,0 +1,43 @@
+/* -*- Mode: Java; c-basic-offset: 4; tab-width: 20; indent-tabs-mode: nil; -*-
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+package org.mozilla.gecko.distribution;
+
+import android.content.Context;
+import android.database.Cursor;
+import android.net.Uri;
+
+/**
+ * Client for accessing data from Android's "partner browser customizations" content provider.
+ */
+public class PartnerBrowserCustomizationsClient {
+    private static final Uri CONTENT_URI = Uri.parse("content://com.android.partnerbrowsercustomizations");
+
+    private static final Uri HOMEPAGE_URI = CONTENT_URI.buildUpon().path("homepage").build();
+
+    private static final String COLUMN_HOMEPAGE = "homepage";
+
+    /**
+     * Returns the partner homepage or null if it could not be read from the content provider.
+     */
+    public static String getHomepage(Context context) {
+        Cursor cursor = context.getContentResolver().query(
+                HOMEPAGE_URI, new String[] { COLUMN_HOMEPAGE }, null, null, null);
+
+        if (cursor == null) {
+            return null;
+        }
+
+        try {
+            if (!cursor.moveToFirst()) {
+                return null;
+            }
+
+            return cursor.getString(cursor.getColumnIndexOrThrow(COLUMN_HOMEPAGE));
+        } finally {
+            cursor.close();
+        }
+    }
+}

mobile/android/base/moz.build

@@ -268,6 +268,7 @@ gbjar.sources += ['java/org/mozilla/gecko/' + x for x in [
     'DevToolsAuthHelper.java',
     'distribution/Distribution.java',
     'distribution/DistributionStoreCallback.java',
+    'distribution/PartnerBrowserCustomizationsClient.java',
     'distribution/ReferrerDescriptor.java',
     'distribution/ReferrerReceiver.java',
     'dlc/BaseAction.java',