Remove implementation of Panels on OSes other than ChromeOS.

chrome/browser/extensions/extension_messages_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 <stddef.h>
 #include <stdint.h>
 
 #include <memory>
 #include <utility>
 
@@ skipping 170 matching lines @@
 IN_PROC_BROWSER_TEST_F(ExtensionApiTest, MessagingInterstitial) {
   net::EmbeddedTestServer https_server(net::EmbeddedTestServer::TYPE_HTTPS);
   https_server.SetSSLConfig(net::EmbeddedTestServer::CERT_MISMATCHED_NAME);
   ASSERT_TRUE(https_server.Start());
 
   ASSERT_TRUE(RunExtensionSubtest("messaging/interstitial_component",
                                   https_server.base_url().spec(),
                                   kFlagLoadAsComponent)) << message_;
 }
 
-// Tests connecting from a panel to its extension.
-class PanelMessagingTest : public ExtensionApiTest {
-  void SetUpCommandLine(base::CommandLine* command_line) override {
-    ExtensionApiTest::SetUpCommandLine(command_line);
-    command_line->AppendSwitch(switches::kEnablePanels);
-  }
-};
-
-IN_PROC_BROWSER_TEST_F(PanelMessagingTest, MessagingPanel) {
-  ASSERT_TRUE(RunExtensionTest("messaging/connect_panel")) << message_;
-}
-
 // XXX(kalman): All web messaging tests disabled on windows due to extreme
 // flakiness. See http://crbug.com/350517.
 #if !defined(OS_WIN)
 
 // Tests externally_connectable between a web page and an extension.
 //
 // TODO(kalman): Test between extensions. This is already tested in this file,
 // but not with externally_connectable set in the manifest.
 //
 // TODO(kalman): Test with host permissions.
@@ skipping 1081 matching lines @@
   ui_test_utils::NavigateToURL(browser(), chromium_org_url());
   EXPECT_EQ(COULD_NOT_ESTABLISH_CONNECTION_ERROR,
             CanConnectAndSendMessagesToMainFrame(invalid.get()));
 }
 
 #endif  // !defined(OS_WIN) - http://crbug.com/350517.
 
 }  // namespace
 
 };  // namespace extensions