Allow the component updater framework to control Origin Trials.

chrome/browser/component_updater/origin_trials_component_installer.h

+// Copyright 2016 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.
+
+#ifndef CHROME_BROWSER_COMPONENT_UPDATER_ORIGIN_TRIALS_COMPONENT_INSTALLER_H_
+#define CHROME_BROWSER_COMPONENT_UPDATER_ORIGIN_TRIALS_COMPONENT_INSTALLER_H_
+
+#include <stdint.h>
+
+#include <memory>
+#include <string>
+
+#include "components/component_updater/default_component_installer.h"
+
+namespace component_updater {
+
+class OriginTrialsComponentInstallerTraits : public ComponentInstallerTraits {

[Sorin Jianu, 2016/04/13 21:17:47]

use private to declare the appropriate access specifier instead of relying on
default.

[iclelland, 2016/04/14 14:30:08]

Yes, done -- thanks. The code was in a pretty rough shape, but I appreciate all
the early feedback!

+  bool VerifyInstallation(
+      const base::DictionaryValue& manifest,
+      const base::FilePath& install_dir) const override;
+  bool CanAutoUpdate() const override;
+  bool RequiresNetworkEncryption() const override;
+  bool OnCustomInstall(const base::DictionaryValue& manifest,
+                       const base::FilePath& install_dir) override;
+  void ComponentReady(const base::Version& version,
+                      const base::FilePath& install_dir,
+                      std::unique_ptr<base::DictionaryValue> manifest) override;
+  base::FilePath GetBaseDirectory() const override;
+  void GetHash(std::vector<uint8_t>* hash) const override;
+  std::string GetName() const override;
+  std::string GetAp() const override;
+};
+
+// Call once during startup to make the component update service aware of
+// the origin trials update component.
+void RegisterOriginTrialsComponent(ComponentUpdateService* cus,
+                                   const base::FilePath& user_data_dir);
+
+}  // namespace component_updater

[Sorin Jianu, 2016/04/13 21:17:47]

most likely, it needs an empty line after.

Also, if not already doing so, please use git cl lint and git cl format for this
CL.

[iclelland, 2016/04/14 14:30:08]

Done -- though, oddly, neither lint nor format picked up on that.

+#endif  // CHROME_BROWSER_COMPONENT_UPDATER_ORIGIN_TRIALS_COMPONENT_INSTALLER_H_