Remove more usage of the base::ListValue::Append(Value*) overload.

remoting/client/plugin/chromoting_instance.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 "remoting/client/plugin/chromoting_instance.h"
 
 #include <nacl_io/nacl_io.h>
 #include <sys/mount.h>
 
 #include <string>
@@ skipping 338 matching lines @@
     const webrtc::DesktopRegion& dirty_region) {
   std::unique_ptr<base::ListValue> rects_value(new base::ListValue());
   for (webrtc::DesktopRegion::Iterator i(dirty_region); !i.IsAtEnd();
        i.Advance()) {
     const webrtc::DesktopRect& rect = i.rect();
     std::unique_ptr<base::ListValue> rect_value(new base::ListValue());
     rect_value->AppendInteger(rect.left());
     rect_value->AppendInteger(rect.top());
     rect_value->AppendInteger(rect.width());
     rect_value->AppendInteger(rect.height());
-    rects_value->Append(rect_value.release());
+    rects_value->Append(std::move(rect_value));
   }
 
   std::unique_ptr<base::DictionaryValue> data(new base::DictionaryValue());
   data->Set("rects", rects_value.release());
   PostLegacyJsonMessage("onDebugRegion", std::move(data));
 }
 
 void ChromotingInstance::OnConnectionState(
     protocol::ConnectionToHost::State state,
     protocol::ErrorCode error) {
@@ skipping 756 matching lines @@
   if (is_custom_counts_histogram) {
     uma.HistogramCustomCounts(histogram_name, value, histogram_min,
                               histogram_max, histogram_buckets);
   } else {
     uma.HistogramCustomTimes(histogram_name, value, histogram_min,
                              histogram_max, histogram_buckets);
   }
 }
 
 }  // namespace remoting