Remove DrivePrefetcher and relevant flags.

chrome/browser/ui/webui/chromeos/drive_internals_ui.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 "chrome/browser/ui/webui/chromeos/drive_internals_ui.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/file_util.h"
 #include "base/format_macros.h"
@@ skipping 371 matching lines @@
   // is called again). In that case, we have to forget the last sent ID here,
   // and resent whole the logs to the page.
   last_sent_event_id_ = -1;
   UpdateEventLogSection();
 }
 
 void DriveInternalsWebUIHandler::UpdateDriveRelatedFlagsSection() {
   const char* kDriveRelatedFlags[] = {
     google_apis::switches::kEnableDriveV2Api,
     switches::kDisableDrive,
-    switches::kEnableDrivePrefetch,
   };
 
   base::ListValue flags;
   for (size_t i = 0; i < arraysize(kDriveRelatedFlags); ++i) {
     const std::string key = kDriveRelatedFlags[i];
     std::string value = "(not set)";
     if (CommandLine::ForCurrentProcess()->HasSwitch(key))
       value = CommandLine::ForCurrentProcess()->GetSwitchValueASCII(key);
     base::DictionaryValue* flag = new DictionaryValue;
     flag->SetString("key", key);
@@ skipping 339 matching lines @@
       content::WebUIDataSource::Create(chrome::kChromeUIDriveInternalsHost);
   source->AddResourcePath("drive_internals.css", IDR_DRIVE_INTERNALS_CSS);
   source->AddResourcePath("drive_internals.js", IDR_DRIVE_INTERNALS_JS);
   source->SetDefaultResource(IDR_DRIVE_INTERNALS_HTML);
 
   Profile* profile = Profile::FromWebUI(web_ui);
   content::WebUIDataSource::Add(profile, source);
 }
 
 }  // namespace chromeos