Hold cros_component_installers in browser_process.

chrome/browser/browser_process_platform_part_chromeos.cc

Index: chrome/browser/browser_process_platform_part_chromeos.cc
diff --git a/chrome/browser/browser_process_platform_part_chromeos.cc b/chrome/browser/browser_process_platform_part_chromeos.cc
index 4b63b33c1daa1e26f6c42546c58b4710352232d9..d73ebb0eb2036b951397c8ac2f29ea5b1a7fb3d2 100644
--- a/chrome/browser/browser_process_platform_part_chromeos.cc
+++ b/chrome/browser/browser_process_platform_part_chromeos.cc
@@ -154,6 +154,17 @@ void BrowserProcessPlatformPart::DestroySystemClock() {
   system_clock_.reset();
 }
 
+void BrowserProcessPlatformPart::AddCompatibleCrOSComponent(
+    const std::string& name) {
+  compatible_cros_components_.insert(name);
+}
+
+bool BrowserProcessPlatformPart::IsCompatibleCrOSComponent(
+    const std::string& name) {
+  auto it = compatible_cros_components_.find(name);
+  return it != compatible_cros_components_.end();

[sky, 2017/05/25 18:03:50]

return compatible_cros_components_.count(name) > 0

[xiaochu, 2017/05/25 18:12:30]

Done.

+}
+
 void BrowserProcessPlatformPart::CreateProfileHelper() {
   DCHECK(!created_profile_helper_ && !profile_helper_);
   created_profile_helper_ = true;