Use std::unique_ptr for base::DictionaryValue and base::ListValue's internal store.

content/browser/android/java/gin_java_method_invocation_helper.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_METHOD_INVOCATION_HELPER_H_
 #define CONTENT_BROWSER_ANDROID_JAVA_GIN_JAVA_METHOD_INVOCATION_HELPER_H_
 
 #include <stddef.h>
 
 #include <map>
@@ skipping 55 matching lines @@
   const base::ListValue& GetPrimitiveResult();
   const base::android::JavaRef<jobject>& GetObjectResult();
   const base::android::JavaRef<jclass>& GetSafeAnnotationClass();
   GinJavaBridgeError GetInvocationError();
 
  private:
   friend class base::RefCountedThreadSafe<GinJavaMethodInvocationHelper>;
   ~GinJavaMethodInvocationHelper();
 
   void BuildObjectRefsFromListValue(DispatcherDelegate* dispatcher,
-                                    const base::Value* list_value);
+                                    const base::Value& list_value);
   void BuildObjectRefsFromDictionaryValue(DispatcherDelegate* dispatcher,
-                                          const base::Value* dict_value);
+                                          const base::Value& dict_value);
 
   bool AppendObjectRef(DispatcherDelegate* dispatcher,
-                       const base::Value* raw_value);
+                       const base::Value& raw_value);
 
   void InvokeMethod(jobject object,
                     jclass clazz,
                     const JavaType& return_type,
                     jmethodID id,
                     jvalue* parameters);
   void SetInvocationError(GinJavaBridgeError error);
   void SetPrimitiveResult(const base::ListValue& result_wrapper);
   void SetObjectResult(
       const base::android::JavaRef<jobject>& object,
@@ skipping 11 matching lines @@
   GinJavaBridgeError invocation_error_;
   base::android::ScopedJavaGlobalRef<jobject> object_result_;
   base::android::ScopedJavaGlobalRef<jclass> safe_annotation_clazz_;
 
   DISALLOW_COPY_AND_ASSIGN(GinJavaMethodInvocationHelper);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_ANDROID_JAVA_GIN_JAVA_METHOD_INVOCATION_HELPER_H_