Reenable disabled component extensions with profile resetter.

chrome/browser/profile_resetter/profile_resetter_unittest.cc

 // Copyright (c) 2013 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 "chrome/browser/profile_resetter/profile_resetter.h"
 
 #include <stddef.h>
 
 #include <memory>
 #include <utility>
@@ skipping 671 matching lines @@
 
   ResetAndWait(ProfileResetter::EXTENSIONS);
 
   EXPECT_EQ(1u, registry()->enabled_extensions().size());
   EXPECT_FALSE(registry()->enabled_extensions().Contains(ext1->id()));
   EXPECT_FALSE(registry()->enabled_extensions().Contains(ext2->id()));
   EXPECT_TRUE(registry()->enabled_extensions().Contains(ext3->id()));
   EXPECT_TRUE(theme_service->UsingDefaultTheme());
 }
 
+TEST_F(ProfileResetterTest, ResetExtensionsByReenablingExternalComponents) {
+  service_->Init();
+
+  base::ScopedTempDir temp_dir;
+  ASSERT_TRUE(temp_dir.CreateUniqueTempDir());
+
+  scoped_refptr<Extension> ext =
+      CreateExtension(base::ASCIIToUTF16("example"),
+                      base::FilePath(FILE_PATH_LITERAL("//nonexistent")),
+                      Manifest::EXTERNAL_COMPONENT,
+                      extensions::Manifest::TYPE_EXTENSION, false);
+  service_->AddExtension(ext.get());
+
+  service_->DisableExtension(ext->id(),
+                             extensions::Extension::DISABLE_USER_ACTION);
+  EXPECT_FALSE(registry()->enabled_extensions().Contains(ext->id()));
+  EXPECT_TRUE(registry()->disabled_extensions().Contains(ext->id()));
+
+  ResetAndWait(ProfileResetter::EXTENSIONS);
+  EXPECT_TRUE(registry()->enabled_extensions().Contains(ext->id()));
+  EXPECT_FALSE(registry()->disabled_extensions().Contains(ext->id()));
+}
+
 TEST_F(ProfileResetterTest, ResetStartPageNonOrganic) {
   PrefService* prefs = profile()->GetPrefs();
   DCHECK(prefs);
 
   SessionStartupPref startup_pref(SessionStartupPref::LAST);
   SessionStartupPref::SetStartupPref(prefs, startup_pref);
 
   ResetAndWait(ProfileResetter::STARTUP_PAGES, kDistributionConfig);
 
   startup_pref = SessionStartupPref::GetStartupPref(prefs);
@@ skipping 345 matching lines @@
       new ResettableSettingsSnapshot(profile()));
   deleted_snapshot->RequestShortcuts(base::Bind(&FeedbackCapture::Fail,
                                                 base::Unretained(&capture)));
   deleted_snapshot.reset();
   // Running remaining tasks shouldn't trigger the callback to be called as
   // |deleted_snapshot| was deleted before it could run.
   base::RunLoop().RunUntilIdle();
 }
 
 }  // namespace