Remove AdoptPrerenderDataFrom.

chrome/browser/prerender/prerender_handle.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 "chrome/browser/prerender/prerender_handle.h"
 
 #include <algorithm>
 
 #include "base/logging.h"
 #include "chrome/browser/prerender/prerender_contents.h"
@@ skipping 59 matching lines @@
 PrerenderHandle::PrerenderHandle(
     PrerenderManager::PrerenderData* prerender_data)
     : observer_(NULL),
       weak_ptr_factory_(this) {
   if (prerender_data) {
     prerender_data_ = prerender_data->AsWeakPtr();
     prerender_data->OnHandleCreated(this);
   }
 }
 
-void PrerenderHandle::AdoptPrerenderDataFrom(PrerenderHandle* other_handle) {
-  DCHECK_EQ(static_cast<PrerenderManager::PrerenderData*>(NULL),
-            prerender_data_.get());
-  if (other_handle->prerender_data_.get() &&
-      other_handle->prerender_data_->contents()) {
-    other_handle->prerender_data_->contents()->RemoveObserver(other_handle);
-  }
-
-  prerender_data_ = other_handle->prerender_data_;
-  other_handle->prerender_data_.reset();
-
-  if (prerender_data_.get()) {
-    DCHECK_NE(static_cast<PrerenderContents*>(NULL),
-              prerender_data_->contents());
-    prerender_data_->contents()->AddObserver(this);
-    // We are joining a prerender that has already started so we fire off an
-    // extra start event at ourselves.
-    OnPrerenderStart(prerender_data_->contents());
-  }
-}
-
 void PrerenderHandle::OnPrerenderStart(PrerenderContents* prerender_contents) {
   DCHECK(CalledOnValidThread());
   DCHECK(prerender_data_.get());
   DCHECK_EQ(prerender_data_->contents(), prerender_contents);
   if (observer_)
     observer_->OnPrerenderStart(this);
 }
 
 void PrerenderHandle::OnPrerenderStopLoading(
     PrerenderContents* prerender_contents) {
@@ skipping 48 matching lines @@
   return prerender_data_->contents()->GetSessionStorageNamespace();
 }
 
 int PrerenderHandle::GetChildId() const {
   if (!prerender_data_.get())
     return -1;
   return prerender_data_->contents()->child_id();
 }
 
 }  // namespace prerender