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

extensions/common/switches.cc

 // Copyright 2013 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 "extensions/common/switches.h"
 
 namespace extensions {
 
 namespace switches {
 
@@ skipping 38 matching lines @@
 const char kExtensionProcess[] = "extension-process";
 
 // Enables extensions running scripts on chrome:// URLs.
 // Extensions still need to explicitly request access to chrome:// URLs in the
 // manifest.
 const char kExtensionsOnChromeURLs[] = "extensions-on-chrome-urls";
 
 // Whether to force developer mode extensions highlighting.
 const char kForceDevModeHighlighting[] = "force-dev-mode-highlighting";
 
-// Enables site isolation for all chrome-extension:// urls.
-const char kIsolateExtensions[] = "isolate-extensions";
-
 // Path to a comma-separated list of apps to load at startup.  The first app in
 // the list will be launched.
 const char kLoadApps[] = "load-apps";
 
 // Notify the user and require consent for extensions running scripts.
 // Appending --scripts-require-action=1 has the same effect as
 // --enable-scripts-require-action (see below).
 const char kScriptsRequireAction[] = "scripts-require-action";
 // FeatureSwitch and about_flags don't play nice. Feature switch expects either
 // --enable-<feature> or --<feature>=1, but about_flags expects the command
@@ skipping 25 matching lines @@
 // the one received from update manifest.
 const char kEnableCrxHashCheck[] = "enable-crx-hash-check";
 
 // Whether to split content script injections into multiple tasks.
 const char kYieldBetweenContentScriptRuns[] =
     "yield-between-content-script-runs";
 
 }  // namespace switches
 
 }  // namespace extensions