Make chrome hide keyboard when opening a new window

chrome/android/javatests/src/org/chromium/chrome/browser/TabsTest.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;
 
 import static org.chromium.base.test.util.Restriction.RESTRICTION_TYPE_NON_LOW_END_DEVICE;
 
 import android.content.DialogInterface;
 import android.content.pm.ActivityInfo;
@@ skipping 313 matching lines @@
         // Click node in the 1st tab.
         DOMUtils.clickNode(this, getActivity().getActivityTab().getContentViewCore(), "input_text");
         assertWaitForKeyboardStatus(true);
 
         // Close current tab(the 1st tab).
         ChromeTabUtils.closeCurrentTab(getInstrumentation(), getActivity());
         assertWaitForKeyboardStatus(false);
     }
 
     /**
+     * Verify that opening a new window hides keyboard.
+     */
+    @MediumTest
+    @Feature({"Android-TabSwitcher"})
+    @RetryOnFailure
+    public void testHideKeyboardWhenOpeningWindow() throws Exception {
+        mTestServer = EmbeddedTestServer.createAndStartServer(getInstrumentation().getContext());
+        // Open a new tab and click an editable node.
+        ChromeTabUtils.fullyLoadUrlInNewTab(
+                getInstrumentation(), getActivity(), mTestServer.getURL(TEST_FILE_PATH), false);
+        assertEquals("Failed to click textarea.", true,
+                DOMUtils.clickNode(
+                        this, getActivity().getActivityTab().getContentViewCore(), "textarea"));
+        assertWaitForKeyboardStatus(true);
+
+        // Click the button to open a new window.
+        assertEquals("Failed to click button.", true,
+                DOMUtils.clickNode(
+                        this, getActivity().getActivityTab().getContentViewCore(), "button"));
+        assertWaitForKeyboardStatus(false);
+    }
+
+    /**
      * Verify that opening a new tab and navigating immediately sets a size on the newly created
      * renderer. https://crbug.com/434477.
      * @throws InterruptedException
      * @throws TimeoutException
      */
     @SmallTest
     @RetryOnFailure
     public void testNewTabSetsContentViewSize() throws InterruptedException, TimeoutException {
         ChromeTabUtils.newTabFromMenu(getInstrumentation(), getActivity());
         getInstrumentation().waitForIdleSync();
@@ skipping 1426 matching lines @@
             throws InterruptedException {
         CriteriaHelper.pollInstrumentationThread(
                     Criteria.equals(expected, new Callable<Boolean>() {
                         @Override
                         public Boolean call() {
                             return fileToCheck.exists();
                         }
                     }));
     }
 }