Use a direct include of strings headers in x/.

chrome/browser/ui/views/chrome_to_mobile_bubble_view.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/views/chrome_to_mobile_bubble_view.h"
 
 #include "base/bind.h"
 #include "base/message_loop.h"
-#include "base/string16.h"
+#include "base/strings/string16.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/values.h"
 #include "chrome/app/chrome_command_ids.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/chrome_to_mobile_service.h"
 #include "chrome/browser/chrome_to_mobile_service_factory.h"
 #include "chrome/browser/ui/browser.h"
 #include "grit/generated_resources.h"
 #include "grit/theme_resources.h"
 #include "ui/base/animation/throb_animation.h"
@@ skipping 326 matching lines @@
   }
 
   // Update the view's contents to show the "Sending..." progress animation.
   cancel_->SetEnabled(false);
   send_->SetEnabled(false);
   send_->SetHorizontalAlignment(gfx::ALIGN_LEFT);
   progress_animation_.reset(new ui::ThrobAnimation(this));
   progress_animation_->SetDuration(kProgressThrobDurationMS);
   progress_animation_->StartThrobbing(-1);
 }