Revert of Enable extension browser tests on debug windows.

chrome/browser/extensions/extension_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 "chrome/browser/extensions/extension_apitest.h"
 
 #include "base/strings/string_split.h"
 #include "base/strings/string_util.h"
 #include "base/strings/stringprintf.h"
 #include "chrome/browser/extensions/extension_service.h"
@@ skipping 187 matching lines @@
   return RunExtensionTestImpl(extension_name, std::string(), NULL, kFlagNone);
 }
 
 bool ExtensionApiTest::RunExtensionTestIncognitoNoFileAccess(
     const std::string& extension_name) {
   return RunExtensionTestImpl(
       extension_name, std::string(), NULL, kFlagEnableIncognito);
 }
 
 bool ExtensionApiTest::ExtensionSubtestsAreSkipped() {
+  // See http://crbug.com/177163 for details.
+#if defined(OS_WIN) && !defined(NDEBUG)
+  LOG(WARNING) << "Workaround for 177163, prematurely returning";
+  return true;
+#else
   return false;
+#endif
 }
 
 bool ExtensionApiTest::RunExtensionSubtest(const std::string& extension_name,
                                            const std::string& page_url) {
   return RunExtensionSubtest(extension_name, page_url, kFlagEnableFileAccess);
 }
 
 bool ExtensionApiTest::RunExtensionSubtest(const std::string& extension_name,
                                            const std::string& page_url,
                                            int flags) {
@@ skipping 190 matching lines @@
   test_config_->SetInteger(kSpawnedTestServerPort,
                            test_server()->host_port_pair().port());
 
   return true;
 }
 
 void ExtensionApiTest::SetUpCommandLine(base::CommandLine* command_line) {
   ExtensionBrowserTest::SetUpCommandLine(command_line);
   test_data_dir_ = test_data_dir_.AppendASCII("api_test");
 }