Add new permission string for extensions that override new tab pages.

chrome/browser/extensions/permission_message_combinations_unittest.cc

 // 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.
 
 #include <memory>
 
 #include "base/command_line.h"
 #include "base/macros.h"
 #include "base/strings/stringprintf.h"
 #include "base/test/values_test_util.h"
@@ skipping 1169 matching lines @@
   CreateAndInstall(
       base::StringPrintf(kManifest, "'clipboardRead', 'clipboardWrite'"));
   ASSERT_TRUE(CheckManifestProducesPermissions(
       "Read and modify data you copy and paste"));
 
   CreateAndInstall(base::StringPrintf(kManifest, "'clipboardWrite'"));
   ASSERT_TRUE(
       CheckManifestProducesPermissions("Modify data you copy and paste"));
 }
 
+TEST_F(PermissionMessageCombinationsUnittest, NewTabPagePermissionMessages) {
+  const char kManifest[] =
+      "{"
+      "  'chrome_url_overrides': {"
+      "    'newtab': 'newtab.html'"
+      "  }"
+      "}";
+
+  CreateAndInstall(kManifest);
+  ASSERT_TRUE(CheckManifestProducesPermissions(
+      "Replace the page you see when opening a new tab"));
+}
+
 // TODO(sashab): Add a test that checks that messages are generated correctly
 // for withheld permissions, when an app is granted the 'all sites' permission.
 
 // TODO(sashab): Add a test that ensures that all permissions that can generate
 // a coalesced message can also generate a message on their own (i.e. ensure
 // that no permissions only modify other permissions).
 
 // TODO(sashab): Add a test for every permission message combination that can
 // generate a message.
 
 // TODO(aboxhall): Add tests for the automation API permission messages.
 
 }  // namespace extensions