Merge "Copy leashes about to return to prevent others release them" into rvc-dev am: d4ec66b4

            if (controls != null) {

                final int length = Math.min(controls.length, outControls.length);

                for (int i = 0; i < length; i++) {

                    final InsetsSourceControl control = controls[i];

                    // Check if we are sending invalid leashes.

                    final SurfaceControl leash = control != null ? control.getLeash() : null;

                    if (leash != null && !leash.isValid()) {

                        Slog.wtf(TAG, leash + " is not valid before sending to " + win,

                                leash.getReleaseStack());

                    }

                    outControls[i] = win.isClientLocal() && control != null

                            ? new InsetsSourceControl(control) : control;

                    // We will leave the critical section before returning the leash to the client,

                    // so we need to copy the leash to prevent others release the one that we are

                    // about to return.

                    // TODO: We will have an extra copy if the client is not local.

                    //       For now, we rely on GC to release it.

                    //       Maybe we can modify InsetsSourceControl.writeToParcel so it can release

                    //       the extra leash as soon as possible.

                    outControls[i] = controls[i] != null

                            ? new InsetsSourceControl(controls[i]) : null;

                }

            }

        }