SeamlessMedia button as one of media action button

- Implement the mechanism for Seamless button in the group of media action button.
- Have a fake Seamless icon in the right of media action button group.
- Need to bind with MediaOutputSlice that are implementing.

Bug: 118428931
Test: Build pass
Change-Id: Idc51d416cc1fc85babdc83d138c8558db5ed5d8e
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/notification/row/NotificationContentView.java b/packages/SystemUI/src/com/android/systemui/statusbar/notification/row/NotificationContentView.java
index c161da3..77cdbb9 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/notification/row/NotificationContentView.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/notification/row/NotificationContentView.java
@@ -43,6 +43,7 @@
 import com.android.internal.util.ContrastColorUtil;
 import com.android.systemui.Dependency;
 import com.android.systemui.R;
+import com.android.systemui.statusbar.MediaTransferManager;
 import com.android.systemui.statusbar.RemoteInputController;
 import com.android.systemui.statusbar.SmartReplyController;
 import com.android.systemui.statusbar.TransformableView;
@@ -163,11 +164,13 @@
     private boolean mIsContentExpandable;
     private boolean mRemoteInputVisible;
     private int mUnrestrictedContentHeight;
+    private MediaTransferManager mMediaTransferManager;
 
 
     public NotificationContentView(Context context, AttributeSet attrs) {
         super(context, attrs);
         mHybridGroupManager = new HybridGroupManager(getContext(), this);
+        mMediaTransferManager = new MediaTransferManager(getContext());
         mSmartReplyConstants = Dependency.get(SmartReplyConstants.class);
         mSmartReplyController = Dependency.get(SmartReplyController.class);
         initView();
@@ -1250,6 +1253,7 @@
             mAmbientWrapper.onContentUpdated(row);
         }
         applyRemoteInputAndSmartReply(entry);
+        applyMediaTransfer(entry);
         updateLegacy();
         mForceSelectNextLayout = true;
         setDark(mDark, false /* animate */, 0 /* delay */);
@@ -1292,6 +1296,22 @@
         }
     }
 
+    private void applyMediaTransfer(final NotificationEntry entry) {
+        View bigContentView = mExpandedChild;
+        if (bigContentView == null || !entry.isMediaNotification()) {
+            return;
+        }
+
+        View mediaActionContainer = bigContentView.findViewById(
+                com.android.internal.R.id.media_actions);
+        if (!(mediaActionContainer instanceof LinearLayout)) {
+            return;
+        }
+
+        mMediaTransferManager.applyMediaTransferView((ViewGroup) mediaActionContainer,
+                entry);
+    }
+
     private void applyRemoteInputAndSmartReply(final NotificationEntry entry) {
         if (mRemoteInputController == null) {
             return;