Merge "Remove outdated logic of checking display-has-content" into main

                if (mLastHidden) {

                    showRobustly(t);

                    mLastHidden = false;

                    final DisplayContent displayContent = w.getDisplayContent();

                    if (!displayContent.getLastHasContent()) {

                        // This draw means the difference between unique content and mirroring.

                        // Run another pass through performLayout to set mHasContent in the

                        // LogicalDisplay.

                        displayContent.pendingLayoutChanges |= FINISH_LAYOUT_REDO_ANIM;

                        if (DEBUG_LAYOUT_REPEATS) {

                            mService.mWindowPlacerLocked.debugLayoutRepeats(

                                    "showSurfaceRobustlyLocked " + w,

                                    displayContent.pendingLayoutChanges);

                        }

                    }

                }

            }

        }