Add EventLog for entering PIP with AutoEnter param

Adds an EventLog for when we enter PIP and whether auto enter was enabled. We can use the existing wm_pause_activity to check for failures when entering PIP.

Test: manual
Bug: 282200851
Change-Id: I6f40d6b0079baa5ac0823e32f21e836c39f0ccc7

services/core/java/com/android/server/wm/ActivityTaskManagerService.java

@@ -3649,6 +3649,8 @@ public class ActivityTaskManagerService extends IActivityTaskManager.Stub {
                     Slog.e(TAG, "Skip enterPictureInPictureMode, destroyed " + r);
                     return;
                 }
+                EventLogTags.writeWmEnterPip(r.mUserId, System.identityHashCode(r),
+                        r.shortComponentName, Boolean.toString(isAutoEnter));
                 r.setPictureInPictureParams(params);
                 r.mAutoEnteringPip = isAutoEnter;
                 mRootWindowContainer.moveActivityToPinnedRootTask(r,

services/core/java/com/android/server/wm/EventLogTags.logtags

@@ -80,3 +80,6 @@ option java_package com.android.server.wm
 
 # Request surface flinger to show / hide the wallpaper surface.
 33001 wm_wallpaper_surface (Display Id|1|5),(Visible|1),(Target|3)
+
+# Entering pip called
+38000 wm_enter_pip (User|1|5),(Token|1|5),(Component Name|3),(is Auto Enter|3)