Remove use of deprecated base::ListValue::Append(Value*) overload in //chrome/browser/extensions

chrome/browser/extensions/api/input_ime/input_ime_api_chromeos.cc

Index: chrome/browser/extensions/api/input_ime/input_ime_api_chromeos.cc
diff --git a/chrome/browser/extensions/api/input_ime/input_ime_api_chromeos.cc b/chrome/browser/extensions/api/input_ime/input_ime_api_chromeos.cc
index 6069e1139607b093b859ebda3769102d9d944664..4f1d60f8d60fc9e52e34e75ddb73ec509911cd24 100644
--- a/chrome/browser/extensions/api/input_ime/input_ime_api_chromeos.cc
+++ b/chrome/browser/extensions/api/input_ime/input_ime_api_chromeos.cc
@@ -180,7 +180,7 @@ class ImeObserverChromeOS : public ui::ImeObserver {
     // first composition character, so for backward compatibility, add it here.
     base::Value* first_value = NULL;
     if (bounds_list->Get(0, &first_value))
-      args->Append(first_value->DeepCopy());
+      args->Append(first_value->CreateDeepCopy());
     args->Append(std::move(bounds_list));
 
     DispatchEventToExtension(