Perform install tasks for newly installed or upgraded component apps/extensions.

chrome/browser/extensions/extension_service_unittest.cc

Index: chrome/browser/extensions/extension_service_unittest.cc
diff --git a/chrome/browser/extensions/extension_service_unittest.cc b/chrome/browser/extensions/extension_service_unittest.cc
index e92239e29e8ad47565c0f53979ee4ddc884fcfd1..031dc27abe0c5dd9593002dce693e702772ce26e 100644
--- a/chrome/browser/extensions/extension_service_unittest.cc
+++ b/chrome/browser/extensions/extension_service_unittest.cc
@@ -4699,8 +4699,8 @@ TEST_F(ExtensionServiceTest, ComponentExtensions) {
   EXPECT_EQ(Extension::COMPONENT, loaded_[0]->location());
   EXPECT_EQ(1u, service_->extensions()->size());
 
-  // Component extensions shouldn't get recorded in the prefs.
-  ValidatePrefKeyCount(0);
+  // Component extensions get a prefs entry on first install.
+  ValidatePrefKeyCount(1);
 
   // Reload all extensions, and make sure it comes back.
   std::string extension_id = (*service_->extensions()->begin())->id();