Remove task.h and finish base::Bind() migration.

chrome/browser/ui/webui/print_preview_handler.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 "chrome/browser/ui/webui/print_preview_handler.h"
 
 #include <ctype.h>
 
 #include <string>
 #include <vector>
@@ skipping 171 matching lines @@
   if (settings.GetInteger(printing::kSettingColor, &color_mode)) {
     ReportPrintSettingHistogram(
         printing::isColorModelSelected(color_mode) ? COLOR : BLACK_AND_WHITE);
   }
 }
 
 // Callback that stores a PDF file on disk.
 void PrintToPdfCallback(Metafile* metafile, const FilePath& path) {
   metafile->SaveTo(path);
   // |metafile| must be deleted on the UI thread.
-  BrowserThread::PostTask(BrowserThread::UI, FROM_HERE,
-                          base::Bind(&DeletePointer<Metafile>, metafile));
+  BrowserThread::PostTask(
+      BrowserThread::UI, FROM_HERE,
+      base::Bind(&base::DeletePointer<Metafile>, metafile));
 }
 
 }  // namespace
 
 // static
 FilePath* PrintPreviewHandler::last_saved_path_ = NULL;
 std::string* PrintPreviewHandler::last_used_printer_cloud_print_data_ = NULL;
 std::string* PrintPreviewHandler::last_used_printer_name_ = NULL;
 printing::ColorModels PrintPreviewHandler::last_used_color_model_ =
     printing::UNKNOWN_COLOR_MODEL;
@@ skipping 654 matching lines @@
     return;
 
   // We no longer require the initiator tab details. Remove those details
   // associated with the preview tab to allow the initiator tab to create
   // another preview tab.
   printing::PrintPreviewTabController* tab_controller =
       printing::PrintPreviewTabController::GetInstance();
   if (tab_controller)
     tab_controller->EraseInitiatorTabInfo(preview_tab_wrapper());
 }