Remove implementation of Panels on OSes other than ChromeOS.

chrome/browser/extensions/api/management/management_apitest.cc

 // Copyright (c) 2012 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 <map>
 
 #include "build/build_config.h"
 #include "chrome/browser/chrome_notification_types.h"
 #include "chrome/browser/extensions/extension_apitest.h"
 #include "chrome/browser/extensions/extension_service.h"
@@ skipping 28 matching lines @@
       continue;
     found = b;
   }
   return found;
 }
 
 }  // namespace
 
 class ExtensionManagementApiTest : public ExtensionApiTest {
  public:
-  void SetUpCommandLine(base::CommandLine* command_line) override {
-    ExtensionApiTest::SetUpCommandLine(command_line);
-    command_line->AppendSwitch(switches::kEnablePanels);
-  }
-
   virtual void LoadExtensions() {
     base::FilePath basedir = test_data_dir_.AppendASCII("management");
 
     // Load 5 enabled items.
     LoadNamedExtension(basedir, "enabled_extension");
     LoadNamedExtension(basedir, "enabled_app");
     LoadNamedExtension(basedir, "description");
     LoadNamedExtension(basedir, "permissions");
     LoadNamedExtension(basedir, "short_name");
 
@@ skipping 265 matching lines @@
   }
 }
 
 IN_PROC_BROWSER_TEST_F(ExtensionManagementApiTest, LaunchType) {
   LoadExtensions();
   base::FilePath basedir = test_data_dir_.AppendASCII("management");
   LoadNamedExtension(basedir, "packaged_app");
 
   ASSERT_TRUE(RunExtensionSubtest("management/test", "launchType.html"));
 }