Update to newer Android Lint and suppress new Lint errors

mojo/android/javatests/src/org/chromium/mojo/bindings/ValidationTest.java

 // Copyright 2014 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.bindings;
 
+import android.annotation.SuppressLint;
 import android.support.test.filters.SmallTest;
 
 import org.chromium.base.test.util.UrlUtils;
 import org.chromium.mojo.HandleMock;
 import org.chromium.mojo.MojoTestCase;
 import org.chromium.mojo.bindings.test.mojom.mojo.ConformanceTestInterface;
 import org.chromium.mojo.bindings.test.mojom.mojo.IntegrationTestInterface;
 import org.chromium.mojo.bindings.test.mojom.mojo.IntegrationTestInterfaceTestHelper;
 import org.chromium.mojo.system.Handle;
 import org.chromium.mojo.system.impl.CoreImpl;
@@ skipping 41 matching lines @@
         public boolean accept(File pathname) {
             // TODO(yzshen, qsr): skip some interface versioning tests.
             if (pathname.getName().startsWith("conformance_mthd13_good_2")) {
                 return false;
             }
             return pathname.isFile() && pathname.getName().startsWith(mPrefix)
                     && pathname.getName().endsWith(".data");
         }
     }
 
+    @SuppressLint("NewApi")
     private static String getStringContent(File f) throws FileNotFoundException {
+        // TODO(crbug.com/635567): Fix this properly.
         try (Scanner scanner = new Scanner(f)) {
             scanner.useDelimiter("\\Z");
             StringBuilder result = new StringBuilder();
             while (scanner.hasNext()) {
                 result.append(scanner.next());
             }
             return result.toString().trim();
         }
     }
 
@@ skipping 149 matching lines @@
     @SmallTest
     public void testIntegrationResponseMessage() throws FileNotFoundException {
         runTest("integration_intf_resp_",
                 new RoutingMessageReceiver(IntegrationTestInterface.MANAGER.buildStub(null,
                         IntegrationTestInterface.MANAGER.buildProxy(null,
                                 new SinkMessageReceiver())),
                         IntegrationTestInterfaceTestHelper
                                 .newIntegrationTestInterfaceMethodCallback()));
     }
 }