Add ContextMenu support upstream for Android

chrome/android/java/src/org/chromium/chrome/browser/contextmenu/EmptyChromeContextMenuItemDelegate.java

Index: chrome/android/java/src/org/chromium/chrome/browser/contextmenu/EmptyChromeContextMenuItemDelegate.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/contextmenu/EmptyChromeContextMenuItemDelegate.java b/chrome/android/java/src/org/chromium/chrome/browser/contextmenu/EmptyChromeContextMenuItemDelegate.java
new file mode 100644
index 0000000000000000000000000000000000000000..afb8f5759b1cdab2854e01f3632bc4a82362201c
--- /dev/null
+++ b/chrome/android/java/src/org/chromium/chrome/browser/contextmenu/EmptyChromeContextMenuItemDelegate.java
@@ -0,0 +1,59 @@
+// 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.
+
+package org.chromium.chrome.browser.contextmenu;
+
+/**
+ * An empty implementation of {@link ChromeContextMenuItemDelegate} to make overriding subsets of
+ * the delegate methods easier.
+ */
+public class EmptyChromeContextMenuItemDelegate implements ChromeContextMenuItemDelegate {
+    @Override
+    public boolean isIncognito() {
+        return false;
+    }
+
+    @Override
+    public boolean isIncognitoSupported() {
+        return false;
+    }
+
+    @Override
+    public boolean canLoadOriginalImage() {
+        return false;
+    }
+
+    @Override
+    public boolean startDownload(boolean isLink) {
+        return false;
+    }
+
+    @Override
+    public void onOpenInNewTab(String url) {
+    }
+
+    @Override
+    public void onOpenInNewIncognitoTab(String url) {
+    }
+
+    @Override
+    public void onOpenImageUrl(String url) {
+    }
+
+    @Override
+    public void onOpenImageInNewTab(String url) {
+    }
+
+    @Override
+    public void onSaveToClipboard(String text, boolean isUrl) {
+    }
+
+    @Override
+    public void onSaveImageToClipboard(String url) {
+    }
+
+    @Override
+    public void onSearchByImageInNewTab() {
+    }
+}