[Android] Prompt with infobar on filename conflict

chrome/android/java/src/org/chromium/chrome/browser/infobar/DownloadOverwriteInfoBarDelegate.java

Index: chrome/android/java/src/org/chromium/chrome/browser/infobar/DownloadOverwriteInfoBarDelegate.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/infobar/DownloadOverwriteInfoBarDelegate.java b/chrome/android/java/src/org/chromium/chrome/browser/infobar/DownloadOverwriteInfoBarDelegate.java
new file mode 100644
index 0000000000000000000000000000000000000000..8963e768e0127724519955722d399c993f2423c6
--- /dev/null
+++ b/chrome/android/java/src/org/chromium/chrome/browser/infobar/DownloadOverwriteInfoBarDelegate.java
@@ -0,0 +1,29 @@
+// Copyright 2015 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.
+
+package org.chromium.chrome.browser.infobar;
+
+import org.chromium.base.CalledByNative;
+
+/**
+ * DownloadOverwriteInfoBar JNI methods
+ */
+public class DownloadOverwriteInfoBarDelegate {
+    private DownloadOverwriteInfoBar mInfoBar;
+
+    private DownloadOverwriteInfoBarDelegate() {}
+
+    @CalledByNative
+    public static DownloadOverwriteInfoBarDelegate create() {
+        return new DownloadOverwriteInfoBarDelegate();
+    }
+
+    @CalledByNative
+    private InfoBar showDownloadOverwriteInfoBar(
+            long nativeInfoBar, String fileName, String dirName, String dirFullPath) {
+        mInfoBar =
+                new DownloadOverwriteInfoBar(nativeInfoBar, null, fileName, dirName, dirFullPath);
+        return mInfoBar;
+    }
+}