Cleanup/ Remove linked_ptr from gin_java_base_object.h/cc

content/browser/android/java/gin_java_bound_object.h

 // Copyright 2014 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.
 
 #ifndef CONTENT_BROWSER_ANDROID_JAVA_GIN_JAVA_BOUND_OBJECT_H_
 #define CONTENT_BROWSER_ANDROID_JAVA_GIN_JAVA_BOUND_OBJECT_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <map>
+#include <memory>
 #include <set>
 
 #include "base/android/jni_weak_ref.h"
 #include "base/android/scoped_java_ref.h"
-#include "base/memory/linked_ptr.h"
 #include "base/memory/ref_counted.h"
 #include "base/values.h"
 #include "content/browser/android/java/java_method.h"
 
 namespace content {
 
 class GinJavaBoundObject
     : public base::RefCountedThreadSafe<GinJavaBoundObject> {
  public:
   typedef int32_t ObjectID;
@@ skipping 45 matching lines @@
   void EnsureMethodsAreSetUp();
 
   JavaObjectWeakGlobalRef ref_;
 
   // An object must be kept in retained_object_set_ either if it has
   // names or if it has a non-empty holders set.
   int names_count_;
   std::set<int32_t> holders_;
 
   // The following fields are accessed on the background thread.
-  typedef std::multimap<std::string, linked_ptr<JavaMethod> > JavaMethodMap;
+  using JavaMethodMap = std::multimap<std::string, std::unique_ptr<JavaMethod>>;
   JavaMethodMap methods_;
   jmethodID object_get_class_method_id_;
   bool are_methods_set_up_;
   base::android::ScopedJavaGlobalRef<jclass> safe_annotation_clazz_;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_ANDROID_JAVA_GIN_JAVA_BOUND_OBJECT_H_