Show selection handles around selected text.

content/public/android/java/src/org/chromium/content/browser/CursorController.java

Index: content/public/android/java/src/org/chromium/content/browser/CursorController.java
diff --git a/content/public/android/java/src/org/chromium/content/browser/CursorController.java b/content/public/android/java/src/org/chromium/content/browser/CursorController.java
new file mode 100644
index 0000000000000000000000000000000000000000..6e572c8a5e32a8f67b64f0e75f29c0a4fcbdf3e5
--- /dev/null
+++ b/content/public/android/java/src/org/chromium/content/browser/CursorController.java
@@ -0,0 +1,41 @@
+// 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.content.browser;
+
+import android.view.ViewTreeObserver;
+
+/**
+ * A CursorController instance can be used to control a cursor in the text.
+ */
+interface CursorController extends ViewTreeObserver.OnTouchModeChangeListener {
+
+    /**
+     * Hide the cursor controller from screen.
+     */
+    void hide();
+
+    /**
+     * @return true if the CursorController is currently visible
+     */
+    boolean isShowing();
+
+    /**
+     * Called when the handle is about to start updating its position.
+     * @param handle
+     */
+    void beforeStartUpdatingPosition(HandleView handle);
+
+    /**
+     * Update the controller's position.
+     */
+    void updatePosition(HandleView handle, int x, int y);
+
+    /**
+     * Called when the view is detached from window. Perform house keeping task, such as
+     * stopping Runnable thread that would otherwise keep a reference on the context, thus
+     * preventing the activity to be recycled.
+     */
+    void onDetached();
+}