Add more control over sync for Chromium testshell.

chrome/browser/sync/profile_sync_service_android.h

 // 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.
 
 #ifndef CHROME_BROWSER_SYNC_PROFILE_SYNC_SERVICE_ANDROID_H_
 #define CHROME_BROWSER_SYNC_PROFILE_SYNC_SERVICE_ANDROID_H_
 
 #include <jni.h>
 #include <map>
 
@@ skipping 175 matching lines @@
   base::android::ScopedJavaLocalRef<jstring> GetAboutInfoForTest(JNIEnv* env,
                                                                  jobject obj);
 
   // Returns the integer value corresponding to the current auth error state
   // (GoogleServiceAuthError.State).
   jint GetAuthError(JNIEnv* env, jobject obj);
 
   // ProfileSyncServiceObserver:
   virtual void OnStateChanged() OVERRIDE;
 
+  // Returns a timestamp for when a sync was last executed. The return value is
+  // the internal value of base::Time.
+  jlong GetLastSyncedTimeForTest(JNIEnv* env, jobject obj);
+
   static ProfileSyncServiceAndroid* GetProfileSyncServiceAndroid();
 
   // Registers the ProfileSyncServiceAndroid's native methods through JNI.
   static bool Register(JNIEnv* env);
 
  private:
   typedef std::map<invalidation::ObjectId,
                    int64,
                    syncer::ObjectIdLessThan> ObjectIdVersionMap;
 
@@ skipping 17 matching lines @@
 
   // The invalidation API spec allows for the possibility of redundant
   // invalidations, so keep track of the max versions and drop
   // invalidations with old versions.
   ObjectIdVersionMap max_invalidation_versions_;
 
   DISALLOW_COPY_AND_ASSIGN(ProfileSyncServiceAndroid);
 };
 
 #endif  // CHROME_BROWSER_SYNC_PROFILE_SYNC_SERVICE_ANDROID_H_