Fix a crash caused by transaction

A native transaction passed from webview is sent back to native side, so java side does not manage the life cycle of the transaction.

Bug: 191414767
Test: Play a video, switch to another app, wait for 10 seconds
Change-Id: I013052c202b445438d6cb6497f5f9a2fc22a2b85

core/java/android/view/SurfaceControl.java

@@ -2610,16 +2610,6 @@ public final class SurfaceControl implements Parcelable {
                 = sRegistry.registerNativeAllocation(this, mNativeObject);
         }
 
-        /**
-         * Create a transaction object that wraps a native peer.
-         * @hide
-         */
-        Transaction(long nativeObject) {
-            mNativeObject = nativeObject;
-            mFreeNativeResources =
-                sRegistry.registerNativeAllocation(this, mNativeObject);
-        }
-
         private Transaction(Parcel in) {
             readFromParcel(in);
         }

core/java/android/view/ViewRootImpl.java

@@ -1371,8 +1371,12 @@ public final class ViewRootImpl implements ViewParent,
         HardwareRenderer.ASurfaceTransactionCallback callback = (nativeTransactionObj,
                                                                  nativeSurfaceControlObj,
                                                                  frameNr) -> {
-            Transaction t = new Transaction(nativeTransactionObj);
-            mergeWithNextTransaction(t, frameNr);
+            if (mBlastBufferQueue == null) {
+                return false;
+            } else {
+                mBlastBufferQueue.mergeWithNextTransaction(nativeTransactionObj, frameNr);
+                return true;
+            }
         };
         mAttachInfo.mThreadedRenderer.setASurfaceTransactionCallback(callback);
     }