Merge "Avoid resuming same activity twice"

                if (!stack.isFocusableAndVisible() || topRunningActivity == null) {

                    continue;

                }

                if (stack == targetStack) {

                    // Simply update the result for targetStack because the targetStack had

                    // already resumed in above. We don't want to resume it again, especially in

                    // some cases, it would cause a second launch failure if app process was dead.

                    resumedOnDisplay |= result;

                    continue;

                }

                if (topRunningActivity.isState(RESUMED)) {

                    // Kick off any lingering app transitions form the MoveTaskToFront operation.

                    stack.executeAppTransition(targetOptions);