[Extensions] DCHECK that ExtensionFunctions respond (and only once)

chrome/test/ppapi/ppapi_browsertest.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 "base/macros.h"
 #include "base/path_service.h"
 #include "base/test/test_timeouts.h"
 #include "base/win/windows_version.h"
@@ skipping 1241 matching lines @@
     ASSERT_TRUE(extension);
 
     AppLaunchParams params(browser()->profile(), extension,
                            extensions::LAUNCH_CONTAINER_NONE, NEW_WINDOW,
                            extensions::SOURCE_TEST);
     params.command_line = *base::CommandLine::ForCurrentProcess();
     OpenApplication(params);
   }
 
   void RunTests(const std::string& extension_dirname) {
-    ExtensionTestMessageListener listener("PASS", true);
+    ExtensionTestMessageListener listener("PASS", false);
     LaunchTestingApp(extension_dirname);
     EXPECT_TRUE(listener.WaitUntilSatisfied());
   }
 
  protected:
   std::string toolchain_;
 };
 
 class NewlibPackagedAppTest : public PackagedAppTest {
  public:
@@ skipping 36 matching lines @@
                        MAYBE_PPAPI_NACL(NoSocketPermissions)) {
   RunTests("no_socket_permissions");
 }
 
 IN_PROC_BROWSER_TEST_F(NewlibPackagedAppTest,
                        MAYBE_PPAPI_NACL(SocketPermissions)) {
   RunTests("socket_permissions");
 }
 
 #endif