[Android] Adding JavaLongArrayToInt64Vector method

base/android/jni_array.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 "base/android/jni_array.h"
 
 #include "base/android/jni_android.h"
 #include "base/android/jni_string.h"
 #include "base/logging.h"
 
@@ skipping 167 matching lines @@
   DCHECK(out);
   size_t len = SafeGetArrayLength(env, int_array);
   out->resize(len);
   if (!len)
     return;
   // TODO(jdduke): Use |out->data()| for pointer access after switch to libc++,
   // both here and in the other conversion routines. See crbug.com/427718.
   env->GetIntArrayRegion(int_array, 0, len, &(*out)[0]);
 }
 
+void JavaLongArrayToInt64Vector(JNIEnv* env,
+                                jlongArray long_array,
+                                std::vector<int64>* out) {
+  DCHECK(out);
+  std::vector<jlong> temp;
+  JavaLongArrayToLongVector(env, long_array, &temp);
+  out->resize(0);
+  out->insert(out->begin(), temp.begin(), temp.end());
+}
+
 void JavaLongArrayToLongVector(JNIEnv* env,
                                jlongArray long_array,
                                std::vector<jlong>* out) {
   DCHECK(out);
   size_t len = SafeGetArrayLength(env, long_array);
   out->resize(len);
   if (!len)
     return;
   env->GetLongArrayRegion(long_array, 0, len, &(*out)[0]);
 }
@@ skipping 22 matching lines @@
             env->GetObjectArrayElement(array, i)));
     jsize bytes_len = env->GetArrayLength(bytes_array.obj());
     jbyte* bytes = env->GetByteArrayElements(bytes_array.obj(), NULL);
     (*out)[i].assign(reinterpret_cast<const char*>(bytes), bytes_len);
     env->ReleaseByteArrayElements(bytes_array.obj(), bytes, JNI_ABORT);
   }
 }
 
 }  // namespace android
 }  // namespace base