Create window in a new BrowsingInstance when opening a link in a new process.

content/common/view_messages.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.
 
 // IPC messages for page rendering.
 // Multiply-included message file, hence no include guard.
 
 #include "base/process.h"
 #include "base/shared_memory.h"
 #include "content/common/content_export.h"
@@ skipping 352 matching lines @@
 
   // The frame identifier of the frame initiating the open.
   IPC_STRUCT_MEMBER(int64, opener_frame_id)
 
   // The URL of the frame initiating the open.
   IPC_STRUCT_MEMBER(GURL, opener_url)
 
   // The security origin of the frame initiating the open.
   IPC_STRUCT_MEMBER(std::string, opener_security_origin)
 
+  // Whether the opener will be suppressed in the new window, in which case
+  // scripting the new window is not allowed.
+  IPC_STRUCT_MEMBER(bool, opener_suppressed)
+
+  // Whether the window should be opened in the foreground, background, etc.
+  IPC_STRUCT_MEMBER(WindowOpenDisposition, disposition)
+
   // The URL that will be loaded in the new window (empty if none has been
   // sepcified).
   IPC_STRUCT_MEMBER(GURL, target_url)
 IPC_STRUCT_END()
 
 IPC_STRUCT_BEGIN(ViewHostMsg_CreateWorker_Params)
   // URL for the worker script.
   IPC_STRUCT_MEMBER(GURL, url)
 
   // Name for a SharedWorker, otherwise empty string.
@@ skipping 1569 matching lines @@
 // have a javascript send a native value (string, number, boolean) to the
 // listener in Cpp. (DomAutomationController)
 IPC_MESSAGE_ROUTED2(ViewHostMsg_DomOperationResponse,
                     std::string  /* json_string */,
                     int  /* automation_id */)
 
 // Enable or disable inverting of web content pixels, for users who prefer
 // white-on-black.
 IPC_MESSAGE_ROUTED1(ViewMsg_InvertWebContent,
                     bool /* invert */)