Move DisownOpener to RenderFrameHost / RenderFrameProxyHost.

content/common/frame_messages.h

 // Copyright 2013 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.
 
 // IPC messages for interacting with frames.
 // Multiply-included message file, hence no include guard.
 
 #include "content/common/content_export.h"
 #include "content/common/content_param_traits.h"
 #include "content/common/frame_message_enums.h"
@@ skipping 323 matching lines @@
 // Sent in response to a FrameHostMsg_ContextMenu to let the renderer know that
 // the menu has been closed.
 IPC_MESSAGE_ROUTED1(FrameMsg_ContextMenuClosed,
                     content::CustomContextMenuContext /* custom_context */)
 
 // Executes custom context menu action that was provided from Blink.
 IPC_MESSAGE_ROUTED2(FrameMsg_CustomContextMenuAction,
                     content::CustomContextMenuContext /* custom_context */,
                     unsigned /* action */)
 
+// Requests that the RenderFrame or RenderFrameProxy sets its opener to null.
+IPC_MESSAGE_ROUTED0(FrameMsg_DisownOpener)
+
 // Instructs the renderer to create a new RenderFrame object with |routing_id|.
 // The new frame should be created as a child of the object identified by
 // |parent_routing_id| or as top level if that is MSG_ROUTING_NONE.
 IPC_MESSAGE_CONTROL2(FrameMsg_NewFrame,
                      int /* routing_id */,
                      int /* parent_routing_id */)
 
 // Instructs the renderer to create a new RenderFrameProxy object with
 // |routing_id|. The new proxy should be created as a child of the object
 // identified by |parent_routing_id| or as top level if that is
@@ skipping 354 matching lines @@
                      std::string  /* selector */,
                      std::string  /* markup */)
 
 // Tells the browser to perform a navigation.
 IPC_MESSAGE_ROUTED1(FrameHostMsg_BeginNavigation,
                     FrameHostMsg_BeginNavigation_Params)
 
 // Sent once a paint happens after the first non empty layout. In other words
 // after the frame has painted something.
 IPC_MESSAGE_ROUTED0(FrameHostMsg_DidFirstVisuallyNonEmptyPaint)