Make content shell on android support relaunching.

content/shell/android/java/src/org/chromium/content_shell/Shell.java

 // 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_shell;
 
 import android.content.Context;
 import android.graphics.drawable.ClipDrawable;
 import android.text.TextUtils;
 import android.util.AttributeSet;
@@ skipping 143 matching lines @@
 
     /**
      * Initializes the ContentView based on the native tab contents pointer passed in.
      * @param nativeTabContents The pointer to the native tab contents object.
      */
     @SuppressWarnings("unused")
     @CalledByNative
     private void initFromNativeTabContents(int nativeTabContents) {
         mContentView = new ContentView(
                 getContext(), nativeTabContents, ContentView.PERSONALITY_CHROME);
+        if (mContentView.getUrl() != null) mUrlTextView.setText(mContentView.getUrl());
         ((FrameLayout) findViewById(R.id.contentview_holder)).addView(mContentView,
                 new FrameLayout.LayoutParams(
                         FrameLayout.LayoutParams.MATCH_PARENT,
                         FrameLayout.LayoutParams.MATCH_PARENT));
         mContentView.requestFocus();
     }
 
     /**
      * @return The {@link ContentView} currently shown by this Shell.
      */
     public ContentView getContentView() {
         return mContentView;
     }
 
     private void setKeyboardVisibilityForUrl(boolean visible) {
         InputMethodManager imm = (InputMethodManager) getContext().getSystemService(
                 Context.INPUT_METHOD_SERVICE);
         if (visible) {
             imm.showSoftInput(mUrlTextView, InputMethodManager.SHOW_IMPLICIT);
         } else {
             imm.hideSoftInputFromWindow(mUrlTextView.getWindowToken(), 0);
         }
     }
 }