Shortcut cross-process frame transfers to avoid pending NavigationEntries.

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/lazy_instance.h"
@@ skipping 2988 matching lines @@
     FOR_EACH_OBSERVER(WebContentsObserver, observers_,
                       DidOpenRequestedURL(new_contents,
                                           render_frame_host,
                                           params.url,
                                           params.referrer,
                                           params.disposition,
                                           params.transition));
   }
 }
 
+bool WebContentsImpl::ShouldTransferNavigation() {
+  if (!delegate_)
+    return true;
+  return delegate_->ShouldTransferNavigation();
+}
+
 bool WebContentsImpl::ShouldPreserveAbortedURLs() {
   if (!delegate_)
     return false;
   return delegate_->ShouldPreserveAbortedURLs(this);
 }
 
 void WebContentsImpl::DidCommitProvisionalLoad(
     RenderFrameHostImpl* render_frame_host,
     const GURL& url,
     ui::PageTransition transition_type) {
@@ skipping 1688 matching lines @@
     const WebContentsObserver::MediaPlayerId& id) {
   FOR_EACH_OBSERVER(WebContentsObserver, observers_, MediaStartedPlaying(id));
 }
 
 void WebContentsImpl::MediaStoppedPlaying(
     const WebContentsObserver::MediaPlayerId& id) {
   FOR_EACH_OBSERVER(WebContentsObserver, observers_, MediaStoppedPlaying(id));
 }
 
 }  // namespace content