Some linked_ptr -> unique_ptr conversion in extensions/browser.

extensions/browser/guest_view/mime_handler_view/mime_handler_stream_manager.cc

 // Copyright 2015 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 "extensions/browser/guest_view/mime_handler_view/mime_handler_stream_manager.h"
 
 #include "base/memory/ptr_util.h"
 #include "base/memory/singleton.h"
 #include "components/keyed_service/content/browser_context_dependency_manager.h"
 #include "components/keyed_service/content/browser_context_keyed_service_factory.h"
@@ skipping 98 matching lines @@
     content::BrowserContext* context) {
   return MimeHandlerStreamManagerFactory::GetInstance()->Get(context);
 }
 
 void MimeHandlerStreamManager::AddStream(
     const std::string& view_id,
     std::unique_ptr<StreamContainer> stream,
     int render_process_id,
     int render_frame_id) {
   streams_by_extension_id_[stream->extension_id()].insert(view_id);
-  auto result = streams_.insert(
-      std::make_pair(view_id, make_linked_ptr(stream.release())));
+  auto result = streams_.insert(std::make_pair(view_id, std::move(stream)));
   DCHECK(result.second);
-  embedder_observers_[view_id] = make_linked_ptr(
-      new EmbedderObserver(this, render_process_id, render_frame_id, view_id));
+  embedder_observers_[view_id] = base::MakeUnique<EmbedderObserver>(
+      this, render_process_id, render_frame_id, view_id);
 }
 
 std::unique_ptr<StreamContainer> MimeHandlerStreamManager::ReleaseStream(
     const std::string& view_id) {
   auto stream = streams_.find(view_id);
   if (stream == streams_.end())
     return nullptr;
 
   std::unique_ptr<StreamContainer> result =
       base::WrapUnique(stream->second.release());
@@ skipping 65 matching lines @@
   stream_manager_->ReleaseStream(view_id_);
 }
 
 bool MimeHandlerStreamManager::EmbedderObserver::IsTrackedRenderFrameHost(
     content::RenderFrameHost* render_frame_host) {
   return render_frame_host->GetRoutingID() == render_frame_id_ &&
          render_frame_host->GetProcess()->GetID() == render_process_id_;
 }
 
 }  // namespace extensions