Update some host_resolver()->AddRules in chrome/browser.

chrome/browser/extensions/wake_event_page_apitest.cc

 // Copyright 2015 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 <string>
 
 #include "base/auto_reset.h"
 #include "base/macros.h"
 #include "base/run_loop.h"
 #include "base/scoped_observer.h"
@@ skipping 45 matching lines @@
 // case is from workers.
 const char* kContentScriptJs =
     "chrome.test.getWakeEventPage()(function(success) {\n"
     "  chrome.test.sendMessage(success ? 'success' : 'failure');\n"
     "});\n";
 
 class WakeEventPageTest : public ExtensionBrowserTest {
  public:
   WakeEventPageTest() {}
 
+  void SetUpOnMainThread() override {
+    ExtensionBrowserTest::SetUpOnMainThread();
+    host_resolver()->AddRule("*", "127.0.0.1");
+  }
+
  protected:
   enum BackgroundPageConfiguration { EVENT, PERSISTENT, NONE };
 
   void RunTest(bool expect_success,
                BackgroundPageConfiguration bg_config,
                bool should_close,
                bool will_be_open) {
     ASSERT_TRUE(embedded_test_server()->Start());
 
     GURL web_url = embedded_test_server()->GetURL("example.com", "/empty.html");
-    host_resolver()->AddRule(web_url.host(), "127.0.0.1");
 
     TestExtensionDir extension_dir;
     {
       std::string manifest_json;
       switch (bg_config) {
         case EVENT:
           manifest_json =
               base::StringPrintf(kManifestJson,
                                  "  'background': {\n"
                                  "    'persistent': false,\n"
@@ skipping 90 matching lines @@
           true /* will_be_open */);
 }
 
 IN_PROC_BROWSER_TEST_F(WakeEventPageTest, NoBackgroundPage) {
   RunTest(false /* expect_success */, NONE, false /* should_close */,
           false /* will_be_open */);
 }
 
 }  // namespace
 }  // namespace extensions