check network connectivity in onPageTranslated callback.

components/translate/core/browser/mock_translate_driver.cc

 // 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.
 
 #include "components/translate/core/browser/mock_translate_driver.h"
 
 namespace translate {
 
 namespace testing {
 
 const std::string kHtmlMimeType = "text/html";
 
 MockTranslateDriver::MockTranslateDriver()
     : on_is_page_translated_changed_called_(false),
       on_translate_enabled_changed_called_(false),
-      language_state_(this) {
+      translate_page_is_called_(false),
+      language_state_(this) {}
+
+void MockTranslateDriver::TranslatePage(int page_seq_no,
+                                        const std::string& translate_script,
+                                        const std::string& source_lang,
+                                        const std::string& target_lang) {
+  translate_page_is_called_ = true;
 }
 
 void MockTranslateDriver::Reset() {
   on_is_page_translated_changed_called_ = false;
   on_translate_enabled_changed_called_ = false;
 }
 
 void MockTranslateDriver::OnIsPageTranslatedChanged() {
   on_is_page_translated_changed_called_ = true;
 }
@@ skipping 24 matching lines @@
 }
 
 bool MockTranslateDriver::HasCurrentPage() {
   return true;
 }
 
 }  // namespace testing
 
 }  // namespace translate