Forward touch events from the toolbar to the NTP only if the fakebox hasn't reached the top of the …

chrome/android/java/src/org/chromium/chrome/browser/toolbar/ToolbarPhone.java

 // Copyright 2015 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.toolbar;
 
 import android.animation.Animator;
 import android.animation.AnimatorListenerAdapter;
 import android.animation.AnimatorSet;
 import android.animation.ObjectAnimator;
@@ skipping 434 matching lines @@
                 && mNtpSearchBoxScrollPercent != 1f
                 && mNtpSearchBoxScrollPercent != UNINITIALIZED_PERCENT) {
             return true;
         }
 
         return super.onInterceptTouchEvent(ev);
     }
 
     @Override
     public boolean onTouchEvent(MotionEvent ev) {
-        // Forward touch events to the NTP if the toolbar is moved away.
-        if (mNtpSearchBoxTranslation.y < 0) {
+        // Forward touch events to the NTP if the toolbar is moved away but the search box hasn't
+        // reached the top of the page yet.
+        if (mNtpSearchBoxTranslation.y < 0 && mLocationBar.getTranslationY() > 0) {
             NewTabPage newTabPage = getToolbarDataProvider().getNewTabPageForCurrentTab();
 
             // No null check -- the toolbar should not be moved if we are not on an NTP.
             return newTabPage.getView().dispatchTouchEvent(ev);
         }
         return super.onTouchEvent(ev);
     }
 
     @Override
     public void onClick(View v) {
@@ skipping 1768 matching lines @@
         });
 
         if (mFullscreenManager != null) {
             mFullscreenCalloutToken =
                     mFullscreenManager.showControlsPersistentAndClearOldToken(
                             mFullscreenCalloutToken);
         }
     }
 }