[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);
+  size_t len = SafeGetArrayLength(env, long_array);
+  out->resize(len);
+  if (!len)
+    return;
+  env->GetLongArrayRegion(long_array, 0, len, &(*out)[0]);

[DmitrySkiba, 2015/08/25 14:31:44]

Hmm, this should produce a warning because GetLongArrayRegion() expects jlong*,
but we are passing int64* without a cast.

[fgorski, 2015/08/25 18:37:55]

Good point, I am testing the updated version now.

+}
+
 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