chrome: Cleanup class/struct forward declarations

chrome/browser/ui/android/autofill/autofill_keyboard_accessory_view.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_UI_ANDROID_AUTOFILL_AUTOFILL_KEYBOARD_ACCESSORY_VIEW_H_
 #define CHROME_BROWSER_UI_ANDROID_AUTOFILL_AUTOFILL_KEYBOARD_ACCESSORY_VIEW_H_
 
 #include <jni.h>
 #include <stddef.h>
 #include <vector>
 
 #include "base/android/scoped_java_ref.h"
 #include "base/compiler_specific.h"
 #include "base/macros.h"
 #include "chrome/browser/ui/autofill/autofill_popup_view.h"
 
-namespace gfx {
-class Rect;
-}
-
 namespace autofill {
 
 class AutofillPopupController;
 
 // A suggestion view that acts as an alternative to the field-attached popup
 // window. This view appears above the keyboard and spans the width of the
 // screen, condensing rather than overlaying the content area. Enable via
 // --enable-autofill-keyboard-accessory-view.
 class AutofillKeyboardAccessoryView : public AutofillPopupView {
  public:
@@ skipping 40 matching lines @@
 
   // The corresponding java object.
   base::android::ScopedJavaGlobalRef<jobject> java_object_;
 
   DISALLOW_COPY_AND_ASSIGN(AutofillKeyboardAccessoryView);
 };
 
 }  // namespace autofill
 
 #endif  // CHROME_BROWSER_UI_ANDROID_AUTOFILL_AUTOFILL_KEYBOARD_ACCESSORY_VIEW_H_