Update android SDK to API version 23.

shell/android/apk/src/org/chromium/mojo/shell/BaseActivity.java

Index: shell/android/apk/src/org/chromium/mojo/shell/BaseActivity.java
diff --git a/shell/android/apk/src/org/chromium/mojo/shell/BaseActivity.java b/shell/android/apk/src/org/chromium/mojo/shell/BaseActivity.java
new file mode 100644
index 0000000000000000000000000000000000000000..2276f5ce5763ec6e9958ff613abc8659fdf82946
--- /dev/null
+++ b/shell/android/apk/src/org/chromium/mojo/shell/BaseActivity.java
@@ -0,0 +1,72 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+package org.chromium.mojo.shell;
+
+import android.Manifest;
+import android.app.Activity;
+import android.content.pm.PackageManager;
+import android.os.Bundle;
+import android.support.v4.app.ActivityCompat;
+import android.support.v4.content.ContextCompat;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * Base activity for any mojo shell activity that will start the shell service. This activity will
+ * ensure that the permission for the shell service are requested and obtained before starting the
+ * shell.
+ */
+public abstract class BaseActivity extends Activity {
+    private static final String[] PERMISSIONS = {
+            Manifest.permission.ACCESS_FINE_LOCATION, Manifest.permission.CAMERA,
+            Manifest.permission.INTERNET, Manifest.permission.NFC,
+            Manifest.permission.READ_CONTACTS, Manifest.permission.READ_EXTERNAL_STORAGE,
+            Manifest.permission.RECORD_AUDIO, Manifest.permission.WRITE_EXTERNAL_STORAGE,
+    };
+
+    /**
+     * @see Activity#onCreate(Bundle)
+     */
+    @Override
+    protected final void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+
+        List<String> requested_permissions = new ArrayList<String>();
+        for (String permission : PERMISSIONS) {
+            if (ContextCompat.checkSelfPermission(this, permission)
+                    != PackageManager.PERMISSION_GRANTED) {
+                requested_permissions.add(permission);
+            }
+        }
+        if (requested_permissions.size() > 0) {
+            ActivityCompat.requestPermissions(this,
+                    requested_permissions.toArray(new String[requested_permissions.size()]), 0);
+            return;
+        }
+
+        onCreateWithPermissions();
+    }
+
+    /**
+     * @see Activity#onRequestPermissionsResult(int, java.lang.String[], int[])
+     */
+    @Override
+    public void onRequestPermissionsResult(
+            int requestCode, String[] permissions, int[] grantResults) {
+        for (int result : grantResults) {
+            if (result != PackageManager.PERMISSION_GRANTED) {
+                finishAndRemoveTask();
+            }
+        }
+        onCreateWithPermissions();
+    }
+
+    /**
+     * This method is called when the module ensured that all needed permissions have been requested
+     * and accepted by the user.
+     */
+    abstract void onCreateWithPermissions();
+}