Merge "Anchoring the front most task to make the dismiss animation more...

            // Scroll the view into position (just center it in the curve)

            if (scrollToNewPosition) {

                float newScroll = mLayoutAlgorithm.getStackScrollForTaskIndex(t) - 0.5f;

                float newScroll = mLayoutAlgorithm.getStackScrollForTask(t) - 0.5f;

                newScroll = mStackScroller.getBoundedStackScroll(newScroll);

                mStackScroller.animateScroll(mStackScroller.getStackScroll(), newScroll, postScrollRunnable);

            } else {

        // Notify the callback that we've removed the task and it can clean up after it

        mCb.onTaskViewDismissed(removedTask);

        // Get the stack scroll of the task to anchor to (since we are removing something, the front

        // most task will be our anchor task)

        Task anchorTask = null;

        float prevAnchorTaskScroll = 0;

        boolean pullStackForward = stack.getTaskCount() > 0;

        if (pullStackForward) {

            anchorTask = mStack.getFrontMostTask();

            prevAnchorTaskScroll = mLayoutAlgorithm.getStackScrollForTask(anchorTask);

        }

        // Update the min/max scroll and animate other task views into their new positions

        updateMinMaxScroll(true, mConfig.launchedWithAltTab, mConfig.launchedFromHome);

        // Offset the stack by as much as the anchor task would otherwise move back

        if (pullStackForward) {

            float anchorTaskScroll = mLayoutAlgorithm.getStackScrollForTask(anchorTask);

            mStackScroller.setStackScroll(mStackScroller.getStackScroll() + (anchorTaskScroll

                    - prevAnchorTaskScroll));

            mStackScroller.boundScroll();

        }

        // Animate all the tasks into place

        requestSynchronizeStackViewsWithModel(200);

        // Update the new front most task

    /**

     * Returns the scroll to such task top = 1f;

     */

    float getStackScrollForTaskIndex(Task t) {

    float getStackScrollForTask(Task t) {

        return mTaskProgressMap.get(t.key);

    }