aw: Fix WebViewDatabaseAdapter threading

android_webview/glue/java/src/com/android/webview/chromium/WebViewChromiumFactoryProvider.java

 // Copyright 2014 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 com.android.webview.chromium;
 
 import android.Manifest;
 import android.app.ActivityManager;
 import android.content.ComponentCallbacks2;
 import android.content.Context;
@@ skipping 521 matching lines @@
         }
         return mWebStorage;
     }
 
     @Override
     public WebViewDatabase getWebViewDatabase(final Context context) {
         synchronized (mLock) {
             if (mWebViewDatabase == null) {
                 ensureChromiumStartedLocked(true);
                 mWebViewDatabase = new WebViewDatabaseAdapter(
-                        runOnUiThreadBlocking(new Callable<HttpAuthDatabase>() {
+                        this, runOnUiThreadBlocking(new Callable<HttpAuthDatabase>() {

[Torne, 2016/07/29 11:26:51]

Isn't this going to have the same problem as the other one, where it'll fail
when already on the UI thread? Or am I confused?

[boliu, 2016/07/29 13:25:05]

Yeah this will have to be rebased onto part 2 again.

                             @Override
                             public HttpAuthDatabase call() {
                                 return getBrowserContextOnUiThread().getHttpAuthDatabase(context);
                             }
                         }));
             }
         }
         return mWebViewDatabase;
     }
 
     WebViewDelegate getWebViewDelegate() {
         return mWebViewDelegate;
     }
 }