Ensure all content_browsertests call the host resolver in SetUpOnMainThread and not after.

content/browser/accessibility/accessibility_win_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 <stdint.h>
 
 #include <memory>
 #include <vector>
 
@@ skipping 1897 matching lines @@
       image->get_accName(childid_self, image_name.Receive()));
   EXPECT_EQ(L"image2", std::wstring(image_name, image_name.Length()));
   EXPECT_HRESULT_FAILED(image_action->doAction(1));
 }
 
 IN_PROC_BROWSER_TEST_F(AccessibilityWinBrowserTest, HasHWNDAfterNavigation) {
   // This test simulates a scenario where RenderWidgetHostViewAura::SetSize
   // is not called again after its window is added to the root window.
   // Ensure that we still get a legacy HWND for accessibility.
 
-  host_resolver()->AddRule("*", "127.0.0.1");
   ASSERT_TRUE(embedded_test_server()->Start());
   WebContentsImpl* web_contents = static_cast<WebContentsImpl*>(
       shell()->web_contents());
   WebContentsView* web_contents_view = web_contents->GetView();
   WebContentsViewAura* web_contents_view_aura =
       static_cast<WebContentsViewAura*>(web_contents_view);
 
   // Set a flag that will cause WebContentsViewAura to initialize a
   // RenderWidgetHostViewAura with a null parent view.
   web_contents_view_aura->set_init_rwhv_with_null_parent_for_testing(true);
@@ skipping 14 matching lines @@
   ASSERT_EQ(nullptr, manager->GetParentHWND());
 
   // Now add the RWHVA's window to the root window and ensure that we have
   // an HWND for accessibility now.
   web_contents_view->GetNativeView()->AddChild(
       web_contents->GetRenderWidgetHostView()->GetNativeView());
   ASSERT_NE(nullptr, manager->GetParentHWND());
 }
 
 IN_PROC_BROWSER_TEST_F(AccessibilityWinBrowserTest, TestAccNavigateInTables) {
-  host_resolver()->AddRule("*", "127.0.0.1");
   ASSERT_TRUE(embedded_test_server()->Start());
   AccessibilityNotificationWaiter waiter(shell()->web_contents(),
                                          kAccessibilityModeComplete,
                                          ui::AX_EVENT_LOAD_COMPLETE);
   NavigateToURL(shell(), embedded_test_server()->GetURL(
                              "/accessibility/html/table-spans.html"));
   waiter.WaitForNotification();
 
   base::win::ScopedComPtr<IAccessible> document(GetRendererAccessible());
   std::vector<base::win::ScopedVariant> document_children =
@@ skipping 77 matching lines @@
   EXPECT_HRESULT_SUCCEEDED(accessible_cell->get_rowIndex(&row_index));
   EXPECT_HRESULT_SUCCEEDED(accessible_cell->get_columnIndex(&column_index));
   EXPECT_EQ(1, row_index);
   EXPECT_EQ(1, column_index);
   variant.Reset();
   name.Reset();
   accessible_cell.Reset();
 }
 
 }  // namespace content