[Android WebView] Convert context menu callback to long press

android_webview/java/src/org/chromium/android_webview/AwWebContentsViewDelegate.java

Index: android_webview/java/src/org/chromium/android_webview/AwWebContentsViewDelegate.java
diff --git a/android_webview/java/src/org/chromium/android_webview/AwWebContentsViewDelegate.java b/android_webview/java/src/org/chromium/android_webview/AwWebContentsViewDelegate.java
new file mode 100644
index 0000000000000000000000000000000000000000..3edfe6b75f1e0b4cb1b1e4bd58b2bd6706edc192
--- /dev/null
+++ b/android_webview/java/src/org/chromium/android_webview/AwWebContentsViewDelegate.java
@@ -0,0 +1,37 @@
+// 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.
+
+package org.chromium.android_webview;
+
+import android.view.ViewGroup;
+
+import org.chromium.base.CalledByNative;
+import org.chromium.base.JNINamespace;
+
+import java.lang.ref.WeakReference;
+
+/**
+ * Java counter-part of AwWebContentsViewDelegate.
+ * Native object is owned by WebContents. Java object is owned by native one.
+ */
+@JNINamespace("android_webview")
+public class AwWebContentsViewDelegate {
+    // WeakReference so that we do not prevent GC of the view which triggers
+    // destruction of whole AwContents object tree.
+    private WeakReference<ViewGroup> mContainerView;
+
+    // Package private. Called by AwContents.
+    AwWebContentsViewDelegate(ViewGroup containerView) {
+        mContainerView = new WeakReference<ViewGroup>(containerView);
+    }
+
+    @CalledByNative
+    private void onShowContextMenu() {
+        // Context menu callback in Chromium is triggered by WebKit on an
+        // unhandled GestureLongPress event. Convert the context menu callback
+        // back into a long click event for Android WebView since the view
+        // system may choose to handle the gesture.
+        mContainerView.get().performLongClick();
+    }
+}