Move most of the remaining users of WebContentsObserver::tab_contents() to use web_contents().

chrome/browser/ui/views/find_bar_host_interactive_uitest.cc

 // Copyright (c) 2011 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/process_util.h"
 #include "base/string_util.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/browser/tabs/tab_strip_model.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/find_bar/find_bar_controller.h"
 #include "chrome/browser/ui/find_bar/find_notification_details.h"
 #include "chrome/browser/ui/view_ids.h"
 #include "chrome/browser/ui/views/find_bar_host.h"
 #include "chrome/browser/ui/views/frame/browser_view.h"
 #include "chrome/common/chrome_notification_types.h"
 #include "chrome/test/base/in_process_browser_test.h"
 #include "chrome/test/base/ui_test_utils.h"
 #include "content/browser/tab_contents/tab_contents.h"
 #include "content/public/browser/notification_service.h"
 #include "net/test/test_server.h"
 #include "ui/base/clipboard/clipboard.h"
 #include "ui/base/keycodes/keyboard_codes.h"
 #include "ui/views/focus/focus_manager.h"
 #include "ui/views/view.h"
 #include "ui/views/views_delegate.h"
 
+using content::WebContents;
+
 namespace {
 
 // The delay waited after sending an OS simulated event.
 static const int kActionDelayMs = 500;
 static const char kSimplePage[] = "files/find_in_page/simple.html";
 
 void Checkpoint(const char* message, const base::TimeTicks& start_time) {
   LOG(INFO) << message << " : "
     << (base::TimeTicks::Now() - start_time).InMilliseconds()
     << " ms" << std::flush;
@@ skipping 306 matching lines @@
 
   string16 str;
   views::ViewsDelegate::views_delegate->GetClipboard()->
       ReadText(ui::Clipboard::BUFFER_STANDARD, &str);
 
   // Make sure the text is copied successfully.
   EXPECT_EQ(ASCIIToUTF16("a"), str);
 
   // Press Ctrl-V to paste the content back, it should start finding even if the
   // content is not changed.
-  content::Source<TabContents> notification_source(
+  content::Source<WebContents> notification_source(
       browser()->GetSelectedTabContents());
   ui_test_utils::WindowedNotificationObserverWithDetails
       <FindNotificationDetails> observer(
           chrome::NOTIFICATION_FIND_RESULT_AVAILABLE, notification_source);
 
   ASSERT_TRUE(ui_test_utils::SendKeyPressSync(
       browser(), ui::VKEY_V, true, false, false, false));
 
   ASSERT_NO_FATAL_FAILURE(observer.Wait());
   FindNotificationDetails details;
   ASSERT_TRUE(observer.GetDetailsFor(notification_source.map_key(), &details));
   EXPECT_TRUE(details.number_of_matches() > 0);
 }