[Android] Fix crashes on Chrome internal pages.

chrome/android/java/src/org/chromium/chrome/browser/toolbar/ToolbarManager.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.content.Context;
 import android.graphics.drawable.Drawable;
 import android.os.Handler;
 import android.os.Looper;
@@ skipping 1044 matching lines @@
                     sendEmptyMessageDelayed(MSG_ID_UPDATE_PROGRESS, PROGRESS_INCREMENT_DELAY_MS);
                 }
             };
         }
 
         /**
          * Start simulating load progress from a baseline of 0.
          */
         public void start() {
             mProgress = 0.0f;
+            mToolbar.startLoadProgress();
             mToolbar.setLoadProgress(mProgress);
-            mToolbar.startLoadProgress();
             mHandler.sendEmptyMessage(MSG_ID_UPDATE_PROGRESS);
         }
 
         /**
          * Cancels simulating load progress.
          */
         public void cancel() {
             mHandler.removeMessages(MSG_ID_UPDATE_PROGRESS);
         }
     }
 }