Hold cros_component_installers in browser_process.

chrome/browser/component_updater/cros_component_installer.cc

 // Copyright 2017 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/component_updater/cros_component_installer.h"
 #include "base/task_scheduler/post_task.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/component_updater/component_installer_errors.h"
 #include "components/component_updater/component_updater_paths.h"
 #include "components/crx_file/id_util.h"
@@ skipping 77 matching lines @@
   }
   BrowserThread::PostTask(
       BrowserThread::UI, FROM_HERE,
       base::Bind(&ImageLoaderRegistration, version, install_dir, name));
   return update_client::CrxInstaller::Result(update_client::InstallError::NONE);
 }
 
 void CrOSComponentInstallerTraits::ComponentReady(
     const base::Version& version,
     const base::FilePath& path,
-    std::unique_ptr<base::DictionaryValue> manifest) {}
+    std::unique_ptr<base::DictionaryValue> manifest) {
+  g_browser_process->platform_part()->AddCompatibleCrOSComponent(GetName());
+}
 
 bool CrOSComponentInstallerTraits::VerifyInstallation(
     const base::DictionaryValue& manifest,
     const base::FilePath& install_dir) const {
   return true;
 }
 
 base::FilePath CrOSComponentInstallerTraits::GetRelativeInstallDir() const {
   return base::FilePath(name);
 }
@@ skipping 37 matching lines @@
     const update_client::Callback& install_callback) {
   cus->GetOnDemandUpdater().OnDemandUpdate(id, install_callback);
 }
 
 bool CrOSComponent::InstallCrOSComponent(
     const std::string& name,
     const update_client::Callback& install_callback) {
   auto* const cus = g_browser_process->component_updater();
   const ConfigMap components = {
       {"epson-inkjet-printer-escpr",
-       {{"env_version", "0.0"},
+       {{"env_version", "2.0"},

[waffles, 2017/05/24 21:14:35]

Did you mean to change this line?

[xiaochu, 2017/05/24 21:35:37]

Done.

Sorry about that. I'm saving this to next CL.

         {"sha2hashstr",
          "1913a5e0a6cad30b6f03e176177e0d7ed62c5d6700a9c66da556d7c3f5d6a47e"}}}};
   if (name.empty()) {
     base::PostTask(
         FROM_HERE,
         base::Bind(install_callback, update_client::Error::INVALID_ARGUMENT));
     return false;
   }
   const auto it = components.find(name);
   if (it == components.end()) {
@@ skipping 39 matching lines @@
       chromeos::DBusThreadManager::Get()->GetImageLoaderClient();
   if (loader) {
     loader->LoadComponent(name, base::Bind(&MountResult, mount_callback));
   } else {
     DVLOG(1) << "Failed to get ImageLoaderClient object.";
   }
 }
 #endif  // defined(OS_CHROMEOS
 
 }  // namespace component_updater