WM: Move WindowManagerPolicy, DisplayFrames and WindowManagerInternal into services

Splits WindowManagerPolicy into a framework and a services part, preventing concepts that are
internal to the window manager from leaking out into the framework.

Test: make droid
Change-Id: I7b6a54f55f76f6fbb5f27090981b8f1d4d8be88b
diff --git a/services/core/java/com/android/server/wm/WallpaperController.java b/services/core/java/com/android/server/wm/WallpaperController.java
index 629cc86..3ae4549 100644
--- a/services/core/java/com/android/server/wm/WallpaperController.java
+++ b/services/core/java/com/android/server/wm/WallpaperController.java
@@ -23,8 +23,8 @@
 import static android.view.WindowManager.LayoutParams.FLAG_SHOW_WALLPAPER;
 import static android.view.WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED;
 import static android.view.WindowManager.LayoutParams.TYPE_WALLPAPER;
-import static android.view.WindowManagerPolicy.FINISH_LAYOUT_REDO_WALLPAPER;
 
+import static com.android.server.policy.WindowManagerPolicy.FINISH_LAYOUT_REDO_WALLPAPER;
 import static com.android.server.wm.AppTransition.TRANSIT_FLAG_KEYGUARD_GOING_AWAY_WITH_WALLPAPER;
 import static com.android.server.wm.WindowManagerDebugConfig.DEBUG_APP_TRANSITIONS;
 import static com.android.server.wm.WindowManagerDebugConfig.DEBUG_WALLPAPER;