Support cross-process window.close() messages.

content/browser/web_contents/web_contents_impl.cc

 // 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.
 
 #include "content/browser/web_contents/web_contents_impl.h"
 
 #include <utility>
 
 #include "base/command_line.h"
 #include "base/metrics/histogram.h"
@@ skipping 2368 matching lines @@
     FOR_EACH_OBSERVER(WebContentsObserver, observers_,
                       DidOpenRequestedURL(new_contents,
                                           url,
                                           referrer,
                                           disposition,
                                           transition_type,
                                           source_frame_id));
   }
 }
 
+void WebContentsImpl::RouteCloseEvent(RenderViewHost* rvh) {
+  // Tell the active RenderViewHost to run unload handlers and close, as long
+  // as the request came from a RenderViewHost in the same BrowsingInstance.
+  // In most cases, we receive this from a swapped out RenderViewHost.
+  // It is possible to receive it from one that has just been swapped in,
+  // in which case we might as well deliver the message anyway.
+  if (rvh->GetSiteInstance()->IsRelatedSiteInstance(GetSiteInstance()))
+    GetRenderViewHost()->ClosePage();
+}
+
 void WebContentsImpl::RunJavaScriptMessage(
     RenderViewHost* rvh,
     const string16& message,
     const string16& default_prompt,
     const GURL& frame_url,
     ui::JavascriptMessageType javascript_message_type,
     IPC::Message* reply_msg,
     bool* did_suppress_message) {
   // Suppress JavaScript dialogs when requested. Also suppress messages when
   // showing an interstitial as it's shown over the previous page and we don't
@@ skipping 298 matching lines @@
 void WebContentsImpl::CreateViewAndSetSizeForRVH(RenderViewHost* rvh) {
   RenderWidgetHostView* rwh_view = GetView()->CreateViewForWidget(rvh);
   // Can be NULL during tests.
   if (rwh_view)
     rwh_view->SetSize(GetView()->GetContainerSize());
 }
 
 RenderViewHostImpl* WebContentsImpl::GetRenderViewHostImpl() {
   return static_cast<RenderViewHostImpl*>(GetRenderViewHost());
 }