Add more control over sync for Chromium testshell.

chrome/browser/sync/profile_sync_service_android.cc

 // Copyright 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 "chrome/browser/sync/profile_sync_service_android.h"
 
 #include "base/android/jni_android.h"
 #include "base/android/jni_string.h"
 #include "base/bind.h"
 #include "base/i18n/time_formatting.h"
@@ skipping 454 matching lines @@
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
 
   scoped_ptr<DictionaryValue> about_info =
       sync_ui_util::ConstructAboutInformation(sync_service_);
   std::string about_info_json;
   base::JSONWriter::Write(about_info.get(), &about_info_json);
 
   return ConvertUTF8ToJavaString(env, about_info_json);
 }
 
+jlong ProfileSyncServiceAndroid::GetLastSyncedTimeForTest(
+    JNIEnv* env, jobject obj) {
+  return static_cast<jlong>(
+      profile_->GetPrefs()->GetInt64(prefs::kSyncLastSyncedTime));
+}
+
 void ProfileSyncServiceAndroid::NudgeSyncer(JNIEnv* env,
                                             jobject obj,
                                             jstring objectId,
                                             jlong version,
                                             jstring state) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   SendNudgeNotification(ConvertJavaStringToUTF8(env, objectId), version,
                         ConvertJavaStringToUTF8(env, state));
 }
 
@@ skipping 20 matching lines @@
   ProfileSyncServiceAndroid* profile_sync_service_android =
       new ProfileSyncServiceAndroid(env, obj);
   profile_sync_service_android->Init();
   return reinterpret_cast<jint>(profile_sync_service_android);
 }
 
 // static
 bool ProfileSyncServiceAndroid::Register(JNIEnv* env) {
   return RegisterNativesImpl(env);
 }