Use a direct include of strings headers in components/, part 1.

components/autofill/browser/autofill_manager_delegate.h

 // 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.
 
 #ifndef COMPONENTS_AUTOFILL_BROWSER_AUTOFILL_MANAGER_DELEGATE_H_
 #define COMPONENTS_AUTOFILL_BROWSER_AUTOFILL_MANAGER_DELEGATE_H_
 
 #include <vector>
 
 #include "base/callback_forward.h"
 #include "base/memory/weak_ptr.h"
-#include "base/string16.h"
+#include "base/strings/string16.h"
 
 namespace content {
 struct PasswordForm;
 struct SSLStatus;
 }
 
 namespace gfx {
 class Rect;
 class RectF;
 }
@@ skipping 102 matching lines @@
   // Hide the Autofill popup if one is currently showing.
   virtual void HideAutofillPopup() = 0;
 
   // Updates the Autocheckout progress bar. |value| must be in [0.0, 1.0].
   virtual void UpdateProgressBar(double value) = 0;
 };
 
 }  // namespace autofill
 
 #endif  // COMPONENTS_AUTOFILL_BROWSER_AUTOFILL_MANAGER_DELEGATE_H_