Create chrome/browser/api directory. Move infobar delegates used by Autofill to the directory.

chrome/browser/infobars/infobar.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 CHROME_BROWSER_INFOBARS_INFOBAR_H_
 #define CHROME_BROWSER_INFOBARS_INFOBAR_H_
 
 #include <utility>
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "build/build_config.h"
-#include "chrome/browser/infobars/infobar_delegate.h"
+#include "chrome/browser/api/infobars/infobar_delegate.h"
 #include "third_party/skia/include/core/SkColor.h"
 #include "ui/base/animation/animation_delegate.h"
 #include "ui/base/animation/slide_animation.h"
 #include "ui/gfx/size.h"
 
 // TODO(sail): These functions should be static methods in the InfoBar class
 // below once all platforms use that class.
 SkColor GetInfoBarTopColor(InfoBarDelegate::Type infobar_type);
 SkColor GetInfoBarBottomColor(InfoBarDelegate::Type infobar_type);
 
@@ skipping 109 matching lines @@
   int bar_target_height_;
 
   DISALLOW_COPY_AND_ASSIGN(InfoBar);
 };
 
 #elif defined(OS_MACOSX)
 #include "chrome/browser/ui/cocoa/infobars/infobar.h"
 #endif
 
 #endif  // CHROME_BROWSER_INFOBARS_INFOBAR_H_