[Autofill] Add Mac implementation for the in-browser process popup view.

chrome/browser/ui/cocoa/autofill/autofill_popup_view_cocoa.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_COCOA_AUTOFILL_AUTOFILL_POPUP_CONTENT_VIEW_H_
+#define CHROME_BROWSER_UI_COCOA_AUTOFILL_AUTOFILL_POPUP_CONTENT_VIEW_H_
+
+#import <Cocoa/Cocoa.h>
+
+#import "ui/base/cocoa/base_view.h"
+
+class AutofillPopupController;
+class AutofillPopupViewMac;
+
+// Draws the native Autofill popup view on Mac.
+@interface AutofillPopupViewCocoa : BaseView {
+ @private
+  // The cross-platform controller for this view.
+  __weak AutofillPopupController* controller_;
+}
+
+// Designated initializer.
+- (id)initWithController:(AutofillPopupController*)controller
+                   frame:(NSRect)frame;
+
+// Informs the view that its controller has been (or will imminently be)
+// destroyed.
+- (void)controllerDestroyed;
+
+@end
+
+#endif  // CHROME_BROWSER_UI_COCOA_AUTOFILL_AUTOFILL_POPUP_CONTENT_VIEW_H_