Fix permission regression where warnings aren't shown in the dialog

chrome/browser/extensions/extension_install_prompt_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 "base/bind.h"
+#include "base/memory/ref_counted.h"
+#include "base/run_loop.h"
+#include "chrome/browser/extensions/extension_install_prompt.h"
+#include "content/public/test/test_browser_thread_bundle.h"
+#include "extensions/common/extension.h"
+#include "extensions/common/extension_builder.h"
+#include "extensions/common/permissions/api_permission.h"
+#include "extensions/common/permissions/api_permission_set.h"
+#include "extensions/common/permissions/manifest_permission_set.h"
+#include "extensions/common/permissions/permission_set.h"
+#include "extensions/common/url_pattern_set.h"
+#include "extensions/common/value_builder.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace extensions {
+
+void VerifyPromptPermissionsCallback(
+    const base::Closure& quit_closure,
+    const ExtensionInstallPrompt::ShowParams& params,
+    ExtensionInstallPrompt::Delegate* delegate,
+    scoped_refptr<ExtensionInstallPrompt::Prompt> install_prompt) {
+  ASSERT_TRUE(install_prompt.get());
+  EXPECT_EQ(1u, install_prompt->GetPermissionCount());
+  quit_closure.Run();
+}
+
+TEST(ExtensionInstallPromptUnittest, PromptShowsPermissionWarnings) {
+  content::TestBrowserThreadBundle thread_bundle;
+  APIPermissionSet api_permissions;
+  api_permissions.insert(APIPermission::kTab);
+  scoped_refptr<PermissionSet> permission_set =
+      new PermissionSet(api_permissions,
+                        ManifestPermissionSet(),
+                        URLPatternSet(),
+                        URLPatternSet());
+  scoped_refptr<const Extension> extension =
+      ExtensionBuilder().SetManifest(
+          DictionaryBuilder().Set("name", "foo")
+                             .Set("version", "1.0")
+                             .Set("manifest_version", 2)
+                             .Set("description", "Random Ext")).Build();
+  ExtensionInstallPrompt prompt(NULL /* no web contents in this test */);
+  base::RunLoop run_loop;
+  prompt.set_callback_for_test(base::Bind(&VerifyPromptPermissionsCallback,
+                                          run_loop.QuitClosure()));
+  prompt.ConfirmPermissions(NULL,  // no delegate
+                            extension,
+                            permission_set);
+  run_loop.Run();
+}
+
+}  // namespace extensions