Add a ExtensionBrowserTest base class

chrome/browser/views/find_bar_win_browsertest.cc

 // Copyright (c) 2009 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 "base/message_loop.h"
 #include "chrome/browser/browser.h"
 #include "chrome/browser/browser_window.h"
 #include "chrome/browser/find_bar_controller.h"
 #include "chrome/browser/find_notification_details.h"
 #include "chrome/browser/renderer_host/render_view_host.h"
@@ skipping 155 matching lines @@
   EXPECT_EQ(1, ordinal);
   EXPECT_EQ(1, FindInPage(L"Hreggvi\u00F0ur", FWD, CASE_SENSITIVE, &ordinal));
   EXPECT_EQ(1, ordinal);
   EXPECT_EQ(0, FindInPage(L"hreggvi\u00F0ur", FWD, CASE_SENSITIVE, &ordinal));
   EXPECT_EQ(0, ordinal);
 }
 
 std::string FocusedOnPage(TabContents* tab_contents) {
   std::string result;
   ui_test_utils::ExecuteJavaScriptAndExtractString(
-      tab_contents,
+      tab_contents->render_view_host(),
       L"",
       L"window.domAutomationController.send(getFocusedElement());",
       &result);
   return result;
 }
 
 // This tests the FindInPage end-state, in other words: what is focused when you
 // close the Find box (ie. if you find within a link the link should be
 // focused).
 IN_PROC_BROWSER_TEST_F(FindInPageControllerTest, FindInPageEndState) {
@@ skipping 20 matching lines @@
   // Verify that the link is focused.
   EXPECT_STREQ("link1", FocusedOnPage(tab_contents).c_str());
 
   // Search for a text that exists within a link on the page.
   EXPECT_EQ(1, FindInPage(L"Google", FWD, IGNORE_CASE, &ordinal));
   EXPECT_EQ(1, ordinal);
 
   // Move the selection to link 1, after searching.
   std::string result;
   ui_test_utils::ExecuteJavaScriptAndExtractString(
-      tab_contents,
+      tab_contents->render_view_host(),
       L"",
       L"window.domAutomationController.send(selectLink1());",
       &result);
 
   // End the find session.
   tab_contents->StopFinding(false);
 
   // Verify that link2 is not focused.
   EXPECT_STREQ("", FocusedOnPage(tab_contents).c_str());
 }
@@ skipping 390 matching lines @@
   // backspace, but that's been proven flaky in the past, so we go straight to
   // tab_contents.
   TabContents* tab_contents = browser()->GetSelectedTabContents();
   // Stop the (non-existing) find operation, and clear the selection (which
   // signals the UI is still active).
   tab_contents->StopFinding(true);
   // Make sure the Find UI flag hasn't been cleared, it must be so that the UI
   // still responds to browser window resizing.
   ASSERT_TRUE(tab_contents->find_ui_active());
 }