Split TabContentsViewMac.

content/public/browser/web_contents_view_mac_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 CONTENT_PUBLIC_BROWSER_WEB_CONTENTS_VIEW_MAC_DELEGATE_H_
+#define CONTENT_PUBLIC_BROWSER_WEB_CONTENTS_VIEW_MAC_DELEGATE_H_
+#pragma once
+
+#import <Cocoa/Cocoa.h>
+
+#include "content/common/content_export.h"
+
+struct ContextMenuParams;
+class RenderWidgetHost;
+@protocol RenderWidgetHostViewMacDelegate;
+
+namespace content {
+
+class WebDragDestDelegate;
+
+// This interface allows a client to extend the functionality of
+// WebContentsViewMac.
+class CONTENT_EXPORT WebContentsViewMacDelegate {

[jam, 2012/02/03 18:15:41]

nit: I don't think you need CONTENT_EXPORT since it's just an interface

+ public:
+  virtual ~WebContentsViewMacDelegate() {}
+
+  // Returns a newly-created delegate for the RenderWidgetHostViewMac, to handle
+  // events on the responder chain.
+  virtual NSObject<RenderWidgetHostViewMacDelegate>*
+      CreateRenderWidgetHostViewDelegate(
+          RenderWidgetHost* render_widget_host) = 0;
+
+  // Returns a delegate to process drags not handled by content.
+  virtual WebDragDestDelegate* DragDelegate() = 0;
+
+  // Shows a context menu.
+  virtual void ShowContextMenu(const ContextMenuParams& params) = 0;
+
+  // Notifications that the native view was created/destroyed.
+  virtual void NativeViewCreated(NSView* view) = 0;
+  virtual void NativeViewDestroyed(NSView* view) = 0;
+};
+
+}  // namespace content
+
+#endif  // CONTENT_PUBLIC_BROWSER_WEB_CONTENTS_VIEW_MAC_DELEGATE_H_