[Android] Don't hide text handles if they are being dragged

content/public/android/java/src/org/chromium/content/browser/input/InsertionHandleController.java

Index: content/public/android/java/src/org/chromium/content/browser/input/InsertionHandleController.java
diff --git a/content/public/android/java/src/org/chromium/content/browser/input/InsertionHandleController.java b/content/public/android/java/src/org/chromium/content/browser/input/InsertionHandleController.java
index 39709b16dd3e85b0f2f76cb342d05074d47ec8b4..66ce430f862af77a59a46bb346bc88022439fbf5 100644
--- a/content/public/android/java/src/org/chromium/content/browser/input/InsertionHandleController.java
+++ b/content/public/android/java/src/org/chromium/content/browser/input/InsertionHandleController.java
@@ -78,6 +78,13 @@ public abstract class InsertionHandleController implements CursorController {
         showPastePopup();
     }
 
+    /**
+     * @return whether the handle is being dragged.
+     */
+    public boolean isDragging() {
+        return mHandle != null && mHandle.isDragging();
+    }
+
     /** Shows the handle at the given coordinates, as long as automatic showing is allowed */
     public void onCursorPositionChanged() {
         if (mAllowAutomaticShowing) {