Remove command line/field trial support and configs for Isolate Extensions.

chrome/browser/chrome_security_exploit_browsertest.cc

Index: chrome/browser/chrome_security_exploit_browsertest.cc
diff --git a/chrome/browser/chrome_security_exploit_browsertest.cc b/chrome/browser/chrome_security_exploit_browsertest.cc
index 35bb23f3a83daf1bef353c13146a5500cfcb72be..1069113e1fe5d7df0c844e20df2b74309dcb90aa 100644
--- a/chrome/browser/chrome_security_exploit_browsertest.cc
+++ b/chrome/browser/chrome_security_exploit_browsertest.cc
@@ -72,13 +72,6 @@ IN_PROC_BROWSER_TEST_F(ChromeSecurityExploitBrowserTest,
 // create a "blob:chrome-extension://" resource.
 IN_PROC_BROWSER_TEST_F(ChromeSecurityExploitBrowserTest,
                        CreateBlobInExtensionOrigin) {
-  // This test relies on extensions documents running in extension processes,
-  // which is guaranteed with --isolate-extensions. Without it, the checks are
-  // not enforced and this test will time out waiting for the process to be
-  // killed.
-  if (!extensions::IsIsolateExtensionsEnabled())
-    return;
-
   ui_test_utils::NavigateToURL(
       browser(),
       embedded_test_server()->GetURL("a.root-servers.net", "/title1.html"));
@@ -181,15 +174,9 @@ IN_PROC_BROWSER_TEST_F(ChromeSecurityExploitBrowserTest,
   EXPECT_TRUE(content::ExecuteScriptAndExtractString(
       rfh, "window.domAutomationController.send(document.body.innerText);",
       &body));
-  if (extensions::IsIsolateExtensionsEnabled()) {
-    EXPECT_EQ(
-        "\nYour file was not found\n\n"
-        "It may have been moved or deleted.\n"
-        "ERR_FILE_NOT_FOUND\n",
-        body);
-  } else {
-    // Without --isolate-extensions, the above steps must succeed, since
-    // unblessed extension frames are allowed in ordinary renderer processes.
-    EXPECT_EQ("pwned.", body);
-  }
+  EXPECT_EQ(
+      "\nYour file was not found\n\n"
+      "It may have been moved or deleted.\n"
+      "ERR_FILE_NOT_FOUND\n",
+      body);
 }