Use base::MessageLoop in more files.

android_webview/browser/aw_form_database_service_unittest.cc

 // Copyright (c) 2013 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.
 
 #include <vector>
 
 #include "android_webview/browser/aw_form_database_service.h"
 #include "base/android/jni_android.h"
 #include "base/files/scoped_temp_dir.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 31 matching lines @@
     service_.reset(new AwFormDatabaseService(temp_dir_.path()));
   }
 
   virtual void TearDown() {
     service_->Shutdown();
   }
 
   // The path to the temporary directory used for the test operations.
   base::ScopedTempDir temp_dir_;
   // A message loop for UI thread.
-  MessageLoop message_loop_;
+  base::MessageLoop message_loop_;
   content::TestBrowserThread ui_thread_;
   content::TestBrowserThread db_thread_;
   JNIEnv* env_;
 
   scoped_ptr<AwFormDatabaseService> service_;
 };
 
 TEST_F(AwFormDatabaseServiceTest, HasAndClearFormData) {
   EXPECT_FALSE(service_->HasFormData());
   std::vector<FormFieldData> fields;
   FormFieldData field;
   field.name = ASCIIToUTF16("foo");
   field.value = ASCIIToUTF16("bar");
   fields.push_back(field);
   service_->get_autofill_webdata_service()->AddFormFields(fields);
   EXPECT_TRUE(service_->HasFormData());
   service_->ClearFormData();
   EXPECT_FALSE(service_->HasFormData());
 }
 
 }  // namespace android_webview