1 files changed, 37 insertions, 0 deletions
diff --git a/base/android/important_file_writer_android.cc b/base/android/important_file_writer_android.cc
new file mode 100644
index 0000000000..fcaa3b1ea0
--- /dev/null
+++ b/base/android/important_file_writer_android.cc
@@ -0,0 +1,37 @@
+// Copyright 2013 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 <string>
+
+#include "base/android/jni_string.h"
+#include "base/files/important_file_writer.h"
+#include "base/threading/thread_restrictions.h"
+#include "jni/ImportantFileWriterAndroid_jni.h"
+
+namespace base {
+namespace android {
+
+static jboolean JNI_ImportantFileWriterAndroid_WriteFileAtomically(
+    JNIEnv* env,
+    const JavaParamRef<jclass>& /* clazz */,
+    const JavaParamRef<jstring>& file_name,
+    const JavaParamRef<jbyteArray>& data) {
+  // This is called on the UI thread during shutdown to save tab data, so
+  // needs to enable IO.
+  base::ThreadRestrictions::ScopedAllowIO allow_io;
+  std::string native_file_name;
+  base::android::ConvertJavaStringToUTF8(env, file_name, &native_file_name);
+  base::FilePath path(native_file_name);
+  int data_length = env->GetArrayLength(data);
+  jbyte* native_data = env->GetByteArrayElements(data, NULL);
+  std::string native_data_string(reinterpret_cast<char *>(native_data),
+                                 data_length);
+  bool result = base::ImportantFileWriter::WriteFileAtomically(
+      path, native_data_string);
+  env->ReleaseByteArrayElements(data, native_data, JNI_ABORT);
+  return result;
+}
+
+}  // namespace android
+}  // namespace base