Merge "Fix non-visual Context in ImageWallpaper" into sc-dev

import static android.graphics.Matrix.MSKEW_X;

import static android.graphics.Matrix.MSKEW_Y;

import static android.view.View.SYSTEM_UI_FLAG_VISIBLE;

import static android.view.WindowManager.LayoutParams.TYPE_WALLPAPER;

import android.annotation.FloatRange;

import android.annotation.NonNull;

            mIWallpaperEngine.mDisplayManager.registerDisplayListener(mDisplayListener,

                    mCaller.getHandler());

            mDisplay = mIWallpaperEngine.mDisplay;

            mDisplayContext = createDisplayContext(mDisplay);

            // Use window context of TYPE_WALLPAPER so client can access UI resources correctly.

            mDisplayContext = createDisplayContext(mDisplay)

                    .createWindowContext(TYPE_WALLPAPER, null /* options */);

            mDisplayState = mDisplay.getState();

            if (DEBUG) Log.v(TAG, "onCreate(): " + this);