Re-write many calls to WrapUnique() with MakeUnique()

content/browser/frame_host/frame_tree_node.cc

 // 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.
 
 #include "content/browser/frame_host/frame_tree_node.h"
 
 #include <queue>
 #include <utility>
 
 #include "base/macros.h"
@@ skipping 181 matching lines @@
 void FrameTreeNode::SetOpener(FrameTreeNode* opener) {
   if (opener_) {
     opener_->RemoveObserver(opener_observer_.get());
     opener_observer_.reset();
   }
 
   opener_ = opener;
 
   if (opener_) {
     if (!opener_observer_)
-      opener_observer_ = base::WrapUnique(new OpenerDestroyedObserver(this));
+      opener_observer_ = base::MakeUnique<OpenerDestroyedObserver>(this);
     opener_->AddObserver(opener_observer_.get());
   }
 }
 
 void FrameTreeNode::SetCurrentURL(const GURL& url) {
   if (!has_committed_real_load_ && url != GURL(url::kAboutBlankURL))
     has_committed_real_load_ = true;
   current_frame_host()->set_last_committed_url(url);
   blame_context_.TakeSnapshot();
 }
@@ skipping 281 matching lines @@
       }
       return parent_->child_at(i + relative_offset);
     }
   }
 
   NOTREACHED() << "FrameTreeNode not found in its parent's children.";
   return nullptr;
 }
 
 }  // namespace content