Move scheduler into its own top level package

The util package is, in practice, for things that are misc enough
to not warrant their own package. If something is deserving of a
package, it's IMO best placed somewhere else (I know you could
argue it's a util, but you could argue that about almost anything
else as well).

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=187010018

extensions/jobdispatcher/src/main/java/com/google/android/exoplayer2/ext/jobdispatcher/JobDispatcherScheduler.java

@@ -29,9 +29,9 @@ import com.firebase.jobdispatcher.Job.Builder;
 import com.firebase.jobdispatcher.JobParameters;
 import com.firebase.jobdispatcher.JobParameters;
 import com.firebase.jobdispatcher.JobService;
 import com.firebase.jobdispatcher.JobService;
 import com.firebase.jobdispatcher.Lifetime;
 import com.firebase.jobdispatcher.Lifetime;
+import com.google.android.exoplayer2.scheduler.Requirements;
+import com.google.android.exoplayer2.scheduler.Scheduler;
 import com.google.android.exoplayer2.util.Util;
 import com.google.android.exoplayer2.util.Util;
-import com.google.android.exoplayer2.util.scheduler.Requirements;
-import com.google.android.exoplayer2.util.scheduler.Scheduler;
 
 
 /**
 /**
  * A {@link Scheduler} which uses {@link com.firebase.jobdispatcher.FirebaseJobDispatcher} to
  * A {@link Scheduler} which uses {@link com.firebase.jobdispatcher.FirebaseJobDispatcher} to

library/core/src/main/java/com/google/android/exoplayer2/offline/DownloadService.java

@@ -30,10 +30,10 @@ import android.support.annotation.Nullable;
 import android.util.Log;
 import android.util.Log;
 import com.google.android.exoplayer2.C;
 import com.google.android.exoplayer2.C;
 import com.google.android.exoplayer2.offline.DownloadManager.DownloadState;
 import com.google.android.exoplayer2.offline.DownloadManager.DownloadState;
+import com.google.android.exoplayer2.scheduler.Requirements;
+import com.google.android.exoplayer2.scheduler.RequirementsWatcher;
+import com.google.android.exoplayer2.scheduler.Scheduler;
 import com.google.android.exoplayer2.util.Util;
 import com.google.android.exoplayer2.util.Util;
-import com.google.android.exoplayer2.util.scheduler.Requirements;
-import com.google.android.exoplayer2.util.scheduler.RequirementsWatcher;
-import com.google.android.exoplayer2.util.scheduler.Scheduler;
 import java.io.IOException;
 import java.io.IOException;
 
 
 /**
 /**

library/core/src/main/java/com/google/android/exoplayer2/util/scheduler/PlatformScheduler.java → library/core/src/main/java/com/google/android/exoplayer2/scheduler/PlatformScheduler.java

@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * See the License for the specific language governing permissions and
  * limitations under the License.
  * limitations under the License.
  */
  */
-package com.google.android.exoplayer2.util.scheduler;
+package com.google.android.exoplayer2.scheduler;
 
 
 import android.annotation.TargetApi;
 import android.annotation.TargetApi;
 import android.app.Notification;
 import android.app.Notification;

library/core/src/main/java/com/google/android/exoplayer2/util/scheduler/Requirements.java → library/core/src/main/java/com/google/android/exoplayer2/scheduler/Requirements.java

@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * See the License for the specific language governing permissions and
  * limitations under the License.
  * limitations under the License.
  */
  */
-package com.google.android.exoplayer2.util.scheduler;
+package com.google.android.exoplayer2.scheduler;
 
 
 import android.content.Context;
 import android.content.Context;
 import android.content.Intent;
 import android.content.Intent;

library/core/src/main/java/com/google/android/exoplayer2/util/scheduler/RequirementsWatcher.java → library/core/src/main/java/com/google/android/exoplayer2/scheduler/RequirementsWatcher.java

@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * See the License for the specific language governing permissions and
  * limitations under the License.
  * limitations under the License.
  */
  */
-package com.google.android.exoplayer2.util.scheduler;
+package com.google.android.exoplayer2.scheduler;
 
 
 import android.annotation.TargetApi;
 import android.annotation.TargetApi;
 import android.content.BroadcastReceiver;
 import android.content.BroadcastReceiver;

library/core/src/main/java/com/google/android/exoplayer2/util/scheduler/Scheduler.java → library/core/src/main/java/com/google/android/exoplayer2/scheduler/Scheduler.java

@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * See the License for the specific language governing permissions and
  * limitations under the License.
  * limitations under the License.
  */
  */
-package com.google.android.exoplayer2.util.scheduler;
+package com.google.android.exoplayer2.scheduler;
 
 
 /**
 /**
  * Implementer of this interface schedules one implementation specific job to be run when some
  * Implementer of this interface schedules one implementation specific job to be run when some

library/dash/src/androidTest/java/com/google/android/exoplayer2/source/dash/offline/DownloadServiceDashTest.java

@@ -26,6 +26,8 @@ import android.test.InstrumentationTestCase;
 import com.google.android.exoplayer2.offline.DownloadManager;
 import com.google.android.exoplayer2.offline.DownloadManager;
 import com.google.android.exoplayer2.offline.DownloadService;
 import com.google.android.exoplayer2.offline.DownloadService;
 import com.google.android.exoplayer2.offline.DownloaderConstructorHelper;
 import com.google.android.exoplayer2.offline.DownloaderConstructorHelper;
+import com.google.android.exoplayer2.scheduler.Requirements;
+import com.google.android.exoplayer2.scheduler.Scheduler;
 import com.google.android.exoplayer2.source.dash.manifest.RepresentationKey;
 import com.google.android.exoplayer2.source.dash.manifest.RepresentationKey;
 import com.google.android.exoplayer2.testutil.DummyMainThread;
 import com.google.android.exoplayer2.testutil.DummyMainThread;
 import com.google.android.exoplayer2.testutil.FakeDataSet;
 import com.google.android.exoplayer2.testutil.FakeDataSet;
@@ -36,8 +38,6 @@ import com.google.android.exoplayer2.upstream.cache.NoOpCacheEvictor;
 import com.google.android.exoplayer2.upstream.cache.SimpleCache;
 import com.google.android.exoplayer2.upstream.cache.SimpleCache;
 import com.google.android.exoplayer2.util.ConditionVariable;
 import com.google.android.exoplayer2.util.ConditionVariable;
 import com.google.android.exoplayer2.util.Util;
 import com.google.android.exoplayer2.util.Util;
-import com.google.android.exoplayer2.util.scheduler.Requirements;
-import com.google.android.exoplayer2.util.scheduler.Scheduler;
 import java.io.File;
 import java.io.File;
 import java.io.IOException;
 import java.io.IOException;