Change WindowState.mShownFrame to WindowState.mShownPosition.

We never use this field as a rectangle, we only depend on its left-top
corner. Using a frame is only confusing about the purpose of this field.

Change-Id: I5d6e6321db4fa3203bb7e0f1975ae6ddd1ec09bb
diff --git a/services/core/java/com/android/server/policy/PhoneWindowManager.java b/services/core/java/com/android/server/policy/PhoneWindowManager.java
index 16add37..e354029 100644
--- a/services/core/java/com/android/server/policy/PhoneWindowManager.java
+++ b/services/core/java/com/android/server/policy/PhoneWindowManager.java
@@ -4614,7 +4614,8 @@
                 final int fl = PolicyControl.getWindowFlags(null, lp);
                 if (localLOGV) {
                     Slog.d(TAG, "frame: " + mTopFullscreenOpaqueWindowState.getFrameLw()
-                            + " shown frame: " + mTopFullscreenOpaqueWindowState.getShownFrameLw());
+                            + " shown position: "
+                            + mTopFullscreenOpaqueWindowState.getShownPositionLw());
                     Slog.d(TAG, "attr: " + mTopFullscreenOpaqueWindowState.getAttrs()
                             + " lp.flags=0x" + Integer.toHexString(fl));
                 }