[Offline pages] Fixing disappearing bolt when switching from incognito

chrome/android/java/src/org/chromium/chrome/browser/omnibox/LocationBarLayout.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.omnibox;
 
 import static org.chromium.chrome.browser.toolbar.ToolbarPhone.URL_FOCUS_CHANGE_ANIMATION_DURATION_MS;
 
 import android.Manifest;
 import android.animation.Animator;
@@ skipping 1238 matching lines @@
                 break;
             case EMPTY:
                 mNavigationButton.setImageDrawable(null);
                 break;
             case OFFLINE:
                 Drawable bolt = ApiCompatibilityUtils.getDrawable(
                         getResources(), R.drawable.offline_bolt);
                 bolt.setColorFilter(ApiCompatibilityUtils.getColor(getResources(), mUseDarkColors
                         ? R.color.locationbar_status_color
                         : R.color.locationbar_status_color_light), PorterDuff.Mode.SRC_IN);
+                bolt.mutate();
                 mNavigationButton.setImageDrawable(bolt);
                 break;
             default:
                 assert false;
         }
 
         if (mNavigationButton.getVisibility() != VISIBLE) {
             mNavigationButton.setVisibility(VISIBLE);
         }
         mNavigationButtonType = buttonType;
@@ skipping 1123 matching lines @@
     public View getContainerView() {
         return this;
     }
 
     @Override
     public void setTitleToPageTitle() { }
 
     @Override
     public void setShowTitle(boolean showTitle) { }
 }