Remove use of deprecated base::ListValue::Append(Value*) overload in extensions.

extensions/browser/app_window/app_window_contents.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 "extensions/browser/app_window/app_window_contents.h"
 
+#include <memory>
 #include <string>
 #include <utility>
 
 #include "content/public/browser/browser_context.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/render_frame_host.h"
 #include "content/public/browser/render_process_host.h"
 #include "content/public/browser/render_view_host.h"
 #include "content/public/browser/resource_dispatcher_host.h"
 #include "content/public/browser/site_instance.h"
@@ skipping 41 matching lines @@
   }
 
   web_contents_->GetController().LoadURL(
       url_, content::Referrer(), ui::PAGE_TRANSITION_LINK,
       std::string());
 }
 
 void AppWindowContentsImpl::NativeWindowChanged(
     NativeAppWindow* native_app_window) {
   base::ListValue args;
-  base::DictionaryValue* dictionary = new base::DictionaryValue();
-  args.Append(dictionary);
-  host_->GetSerializedState(dictionary);
+  std::unique_ptr<base::DictionaryValue> dictionary(
+      new base::DictionaryValue());
+  host_->GetSerializedState(dictionary.get());
+  args.Append(std::move(dictionary));
 
   content::RenderFrameHost* rfh = web_contents_->GetMainFrame();
   rfh->Send(new ExtensionMsg_MessageInvoke(
       rfh->GetRoutingID(), host_->extension_id(), "app.window",
       "updateAppWindowProperties", args, false));
 }
 
 void AppWindowContentsImpl::NativeWindowClosed() {
   content::RenderViewHost* rvh = web_contents_->GetRenderViewHost();
   rvh->Send(new ExtensionMsg_AppWindowClosed(rvh->GetRoutingID()));
@@ skipping 49 matching lines @@
     content::RenderFrameHost* rfh) {
   DCHECK(rfh);
   // Don't bother blocking requests if the renderer side is already good to go.
   if (is_window_ready_)
     return;
   is_blocking_requests_ = true;
   content::ResourceDispatcherHost::BlockRequestsForFrameFromUI(rfh);
 }
 
 }  // namespace extensions