Merge "Stop splitscreen from resizing to 50:50 unless it's a true launch adjacent" into main

                    mSplitTransitions.setEnterTransition(transition, request.getRemoteTransition(),

                            TRANSIT_SPLIT_SCREEN_PAIR_OPEN, !mIsDropEnteringSplitInvisible,

                            SNAP_TO_2_50_50);

                } else if (enableFlexibleTwoAppSplit() && isSplitScreenVisible() && isOpening) {

                } else if (enableFlexibleTwoAppSplit() && isSplitScreenVisible() && isOpening

                        && requestHasLaunchAdjacentFlag(request)) {

                    // launching into an existing split stage; possibly launchAdjacent

                    // If we're replacing a pip-able app, we need to let mixed handler take care of

                    // it. Otherwise we'll just treat it as an enter+resize