Implement SmartText selection.

chrome/android/java/src/org/chromium/chrome/browser/contextualsearch/ContextualSearchManager.java

Index: chrome/android/java/src/org/chromium/chrome/browser/contextualsearch/ContextualSearchManager.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/contextualsearch/ContextualSearchManager.java b/chrome/android/java/src/org/chromium/chrome/browser/contextualsearch/ContextualSearchManager.java
index 20f75a0474b4999314d4d57019c5aa7f086d0132..3465e0b3f65df43f9dc019402be12d204f92941c 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/contextualsearch/ContextualSearchManager.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/contextualsearch/ContextualSearchManager.java
@@ -1242,6 +1242,11 @@ public class ContextualSearchManager implements ContextualSearchManagementDelega
         }
     }
 
+    @Override
+    public boolean sendsMenuUpdates() {
+        return false;
+    }
+
     private boolean isOverlayVideoMode() {
         return mActivity.getFullscreenManager() != null
                 && mActivity.getFullscreenManager().isOverlayVideoMode();