[Extensions] Rework inline installation observation

chrome/browser/extensions/webstore_inline_installer_browsertest.cc

Index: chrome/browser/extensions/webstore_inline_installer_browsertest.cc
diff --git a/chrome/browser/extensions/webstore_inline_installer_browsertest.cc b/chrome/browser/extensions/webstore_inline_installer_browsertest.cc
index d6c561dc0e1c8373c2ff087088ca128ec4082b7f..b00579d5349979a6d4c86282a41f1414bef0c2cc 100644
--- a/chrome/browser/extensions/webstore_inline_installer_browsertest.cc
+++ b/chrome/browser/extensions/webstore_inline_installer_browsertest.cc
@@ -335,6 +335,30 @@ IN_PROC_BROWSER_TEST_F(WebstoreInlineInstallerListenerTest,
 
 IN_PROC_BROWSER_TEST_F(WebstoreInlineInstallerListenerTest, BothListenersTest) {
   RunTest("both_listeners.html");
+  // The extension should be installed.
+  ExtensionRegistry* registry = ExtensionRegistry::Get(profile());
+  EXPECT_TRUE(registry->enabled_extensions().GetByID(kTestExtensionId));
+
+  // Rinse and repeat: uninstall the extension, open a new tab, and install it
+  // again. Regression test for crbug.com/613949.
+  extension_service()->UninstallExtension(
+      kTestExtensionId,
+      UNINSTALL_REASON_FOR_TESTING,
+      base::Bind(&base::DoNothing),
+      nullptr);
+  base::RunLoop().RunUntilIdle();
+  EXPECT_FALSE(registry->enabled_extensions().GetByID(kTestExtensionId));
+  int old_tab_index = browser()->tab_strip_model()->active_index();
+  ui_test_utils::NavigateToURLWithDisposition(
+      browser(),
+      GenerateTestServerUrl(kAppDomain, "both_listeners.html"),
+      NEW_FOREGROUND_TAB,
+      ui_test_utils::BROWSER_TEST_WAIT_FOR_NAVIGATION);
+  DCHECK_NE(old_tab_index, browser()->tab_strip_model()->active_index());
+  browser()->tab_strip_model()->CloseWebContentsAt(
+      old_tab_index, TabStripModel::CLOSE_NONE);
+  WebstoreInstallerTest::RunTest("runTest");
+  EXPECT_TRUE(registry->enabled_extensions().GetByID(kTestExtensionId));
 }
 
 }  // namespace extensions