Inline v7 NotificationCompatImplApi21+24

Remove the need for separate NotificationCompatImplApi21
and NotificationCompatImplApi24 classes in v7
NotificationCompat by inlining the APIs.

Test: Manual inspection
BUG: 28983951
Change-Id: I4604e07dbda0d724b35972eb25504c14fb85cca2
diff --git a/v7/appcompat/src/android/support/v7/app/NotificationCompat.java b/v7/appcompat/src/android/support/v7/app/NotificationCompat.java
index ee403fa..0ebe1ea 100644
--- a/v7/appcompat/src/android/support/v7/app/NotificationCompat.java
+++ b/v7/appcompat/src/android/support/v7/app/NotificationCompat.java
@@ -21,10 +21,12 @@
 import android.app.Notification;
 import android.app.PendingIntent;
 import android.content.Context;
+import android.media.session.MediaSession;
 import android.os.Build;
 import android.os.Bundle;
 import android.os.IBinder;
 import android.os.Parcel;
+import android.support.annotation.RequiresApi;
 import android.support.annotation.RestrictTo;
 import android.support.v4.app.BundleCompat;
 import android.support.v4.app.NotificationBuilderWithBuilderAccessor;
@@ -204,14 +206,24 @@
         @Override
         public void apply(NotificationBuilderWithBuilderAccessor builder) {
             if (Build.VERSION.SDK_INT >= 21) {
-                NotificationCompatImpl21.addMediaStyle(builder,
-                        mActionsToShowInCompact,
-                        mToken != null ? mToken.getToken() : null);
+                builder.getBuilder().setStyle(
+                        fillInMediaStyle(new Notification.MediaStyle()));
             } else if (mShowCancelButton) {
                 builder.getBuilder().setOngoing(true);
             }
         }
 
+        @RequiresApi(21)
+        Notification.MediaStyle fillInMediaStyle(Notification.MediaStyle style) {
+            if (mActionsToShowInCompact != null) {
+                style.setShowActionsInCompactView(mActionsToShowInCompact);
+            }
+            if (mToken != null) {
+                style.setMediaSession((MediaSession.Token) mToken.getToken());
+            }
+            return style;
+        }
+
         /**
          * @hide
          */
@@ -301,7 +313,7 @@
         @Override
         public void apply(NotificationBuilderWithBuilderAccessor builder) {
             if (Build.VERSION.SDK_INT >= 24) {
-                NotificationCompatImpl24.addDecoratedCustomViewStyle(builder);
+                builder.getBuilder().setStyle(new Notification.DecoratedCustomViewStyle());
             }
         }
 
@@ -421,9 +433,8 @@
         @Override
         public void apply(NotificationBuilderWithBuilderAccessor builder) {
             if (Build.VERSION.SDK_INT >= 24) {
-                NotificationCompatImpl24.addDecoratedMediaCustomViewStyle(builder,
-                        mActionsToShowInCompact,
-                        mToken != null ? mToken.getToken() : null);
+                builder.getBuilder().setStyle(
+                        fillInMediaStyle(new Notification.DecoratedMediaCustomViewStyle()));
             } else {
                 super.apply(builder);
             }
diff --git a/v7/appcompat/src/android/support/v7/app/NotificationCompatImpl21.java b/v7/appcompat/src/android/support/v7/app/NotificationCompatImpl21.java
deleted file mode 100644
index 2a4bf7b..0000000
--- a/v7/appcompat/src/android/support/v7/app/NotificationCompatImpl21.java
+++ /dev/null
@@ -1,38 +0,0 @@
-/*
- * Copyright (C) 2015 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package android.support.v7.app;
-
-import android.app.Notification;
-import android.media.session.MediaSession;
-import android.support.annotation.RequiresApi;
-import android.support.v4.app.NotificationBuilderWithBuilderAccessor;
-
-@RequiresApi(21)
-class NotificationCompatImpl21 {
-
-    public static void addMediaStyle(NotificationBuilderWithBuilderAccessor b,
-            int[] actionsToShowInCompact,
-            Object token) {
-        Notification.MediaStyle style = new Notification.MediaStyle(b.getBuilder());
-        if (actionsToShowInCompact != null) {
-            style.setShowActionsInCompactView(actionsToShowInCompact);
-        }
-        if (token != null) {
-            style.setMediaSession((MediaSession.Token) token);
-        }
-    }
-}
diff --git a/v7/appcompat/src/android/support/v7/app/NotificationCompatImpl24.java b/v7/appcompat/src/android/support/v7/app/NotificationCompatImpl24.java
deleted file mode 100644
index cc09bb5..0000000
--- a/v7/appcompat/src/android/support/v7/app/NotificationCompatImpl24.java
+++ /dev/null
@@ -1,46 +0,0 @@
-/*
- * Copyright (C) 2016 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License
- */
-
-package android.support.v7.app;
-
-import android.app.Notification;
-import android.media.session.MediaSession;
-import android.support.annotation.RequiresApi;
-import android.support.v4.app.NotificationBuilderWithBuilderAccessor;
-
-@RequiresApi(24)
-class NotificationCompatImpl24 {
-
-    public static void addDecoratedCustomViewStyle(NotificationBuilderWithBuilderAccessor b) {
-        Notification.Builder builder = b.getBuilder();
-        builder.setStyle(new Notification.DecoratedCustomViewStyle());
-    }
-
-    public static void addDecoratedMediaCustomViewStyle(NotificationBuilderWithBuilderAccessor b,
-            int[] actionsToShowInCompact,
-            Object token) {
-        Notification.Builder builder = b.getBuilder();
-        Notification.DecoratedMediaCustomViewStyle style =
-                new Notification.DecoratedMediaCustomViewStyle();
-        if (actionsToShowInCompact != null) {
-            style.setShowActionsInCompactView(actionsToShowInCompact);
-        }
-        if (token != null) {
-            style.setMediaSession((MediaSession.Token) token);
-        }
-        builder.setStyle(style);
-    }
-}