Create CoreTabHelper, move remaining core TCW functionality into it.

chrome/browser/ui/pdf/pdf_browsertest.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/file_util.h"
 #include "base/path_service.h"
 #include "base/string_number_conversions.h"
 #include "base/string_util.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/browser_window.h"
+#include "chrome/browser/ui/snapshot_tab_helper.h"
 #include "chrome/browser/ui/tab_contents/tab_contents_wrapper.h"
 #include "chrome/common/chrome_notification_types.h"
 #include "chrome/common/chrome_paths.h"
 #include "chrome/test/base/in_process_browser_test.h"
 #include "chrome/test/base/ui_test_utils.h"
 #include "content/browser/renderer_host/render_view_host.h"
 #include "content/browser/tab_contents/tab_contents.h"
 #include "content/public/browser/notification_observer.h"
 #include "net/test/test_server.h"
 #include "ui/base/clipboard/clipboard.h"
@@ skipping 48 matching lines @@
     GURL url(ui_test_utils::GetTestUrl(
         GetPDFTestDir(),
         FilePath(FILE_PATH_LITERAL("pdf_browsertest.pdf"))));
     ui_test_utils::NavigateToURL(browser(), url);
   }
 
   void VerifySnapshot(const std::string& expected_filename) {
     snapshot_different_ = true;
     expected_filename_ = expected_filename;
     TabContentsWrapper* wrapper =  browser()->GetSelectedTabContentsWrapper();
-    wrapper->CaptureSnapshot();
+    wrapper->snapshot_tab_helper()->CaptureSnapshot();
     ui_test_utils::RegisterAndWait(
         this,
         chrome::NOTIFICATION_TAB_SNAPSHOT_TAKEN,
         content::Source<TabContentsWrapper>(wrapper));
     ASSERT_FALSE(snapshot_different_) << "Rendering didn't match, see result "
         "at " << snapshot_filename_.value().c_str();
   }
 
   void WaitForResponse() {
     // Even if the plugin has loaded the data or scrolled, because of how
@@ skipping 260 matching lines @@
   ASSERT_TRUE(ui_test_utils::ExecuteJavaScript(
       browser()->GetSelectedTabContents()->render_view_host(),
       std::wstring(),
       L"reloadPDF();"));
   observer.Wait();
 
   ASSERT_EQ("success", browser()->GetSelectedTabContents()->GetURL().query());
 }
 
 }  // namespace