Convert EventLogTags.AM* events log points to EventLogTags.WM

Since all activity management is now under the WM package we should also
convert the event log points for activities from EventLogTags.AM* to
EventLogTags.WM*.

Bug: 143461660
Test: Build and run, check event logs.
Change-Id: I62034ee353f65ef95b069e1f36db214ccb3c6d85
diff --git a/core/java/android/app/Activity.java b/core/java/android/app/Activity.java
index f54e841..6bea68b 100644
--- a/core/java/android/app/Activity.java
+++ b/core/java/android/app/Activity.java
@@ -769,17 +769,6 @@
 
     private static final String KEYBOARD_SHORTCUTS_RECEIVER_PKG_NAME = "com.android.systemui";
 
-    private static final int LOG_AM_ON_CREATE_CALLED = 30057;
-    private static final int LOG_AM_ON_START_CALLED = 30059;
-    private static final int LOG_AM_ON_RESUME_CALLED = 30022;
-    private static final int LOG_AM_ON_PAUSE_CALLED = 30021;
-    private static final int LOG_AM_ON_STOP_CALLED = 30049;
-    private static final int LOG_AM_ON_RESTART_CALLED = 30058;
-    private static final int LOG_AM_ON_DESTROY_CALLED = 30060;
-    private static final int LOG_AM_ON_ACTIVITY_RESULT_CALLED = 30062;
-    private static final int LOG_AM_ON_TOP_RESUMED_GAINED_CALLED = 30064;
-    private static final int LOG_AM_ON_TOP_RESUMED_LOST_CALLED = 30065;
-
     private static class ManagedDialog {
         Dialog mDialog;
         Bundle mArgs;
@@ -1863,8 +1852,13 @@
     final void performTopResumedActivityChanged(boolean isTopResumedActivity, String reason) {
         onTopResumedActivityChanged(isTopResumedActivity);
 
-        writeEventLog(isTopResumedActivity
-                ? LOG_AM_ON_TOP_RESUMED_GAINED_CALLED : LOG_AM_ON_TOP_RESUMED_LOST_CALLED, reason);
+        if (isTopResumedActivity) {
+            EventLogTags.writeWmOnTopResumedGainedCalled(mIdent, getComponentName().getClassName(),
+                    reason);
+        } else {
+            EventLogTags.writeWmOnTopResumedLostCalled(mIdent, getComponentName().getClassName(),
+                    reason);
+        }
     }
 
     void setVoiceInteractor(IVoiceInteractor voiceInteractor) {
@@ -7898,7 +7892,8 @@
         } else {
             onCreate(icicle);
         }
-        writeEventLog(LOG_AM_ON_CREATE_CALLED, "performCreate");
+        EventLogTags.writeWmOnCreateCalled(mIdent, getComponentName().getClassName(),
+                "performCreate");
         mActivityTransitionState.readState(icicle);
 
         mVisibleFromClient = !mWindow.getWindowStyle().getBoolean(
@@ -7920,7 +7915,7 @@
         mCalled = false;
         mFragments.execPendingActions();
         mInstrumentation.callActivityOnStart(this);
-        writeEventLog(LOG_AM_ON_START_CALLED, reason);
+        EventLogTags.writeWmOnStartCalled(mIdent, getComponentName().getClassName(), reason);
 
         if (!mCalled) {
             throw new SuperNotCalledException(
@@ -7998,7 +7993,7 @@
 
             mCalled = false;
             mInstrumentation.callActivityOnRestart(this);
-            writeEventLog(LOG_AM_ON_RESTART_CALLED, reason);
+            EventLogTags.writeWmOnRestartCalled(mIdent, getComponentName().getClassName(), reason);
             if (!mCalled) {
                 throw new SuperNotCalledException(
                     "Activity " + mComponent.toShortString() +
@@ -8031,7 +8026,7 @@
         mCalled = false;
         // mResumed is set by the instrumentation
         mInstrumentation.callActivityOnResume(this);
-        writeEventLog(LOG_AM_ON_RESUME_CALLED, reason);
+        EventLogTags.writeWmOnResumeCalled(mIdent, getComponentName().getClassName(), reason);
         if (!mCalled) {
             throw new SuperNotCalledException(
                 "Activity " + mComponent.toShortString() +
@@ -8070,7 +8065,8 @@
         mFragments.dispatchPause();
         mCalled = false;
         onPause();
-        writeEventLog(LOG_AM_ON_PAUSE_CALLED, "performPause");
+        EventLogTags.writeWmOnPausedCalled(mIdent, getComponentName().getClassName(),
+                "performPause");
         mResumed = false;
         if (!mCalled && getApplicationInfo().targetSdkVersion
                 >= android.os.Build.VERSION_CODES.GINGERBREAD) {
@@ -8110,7 +8106,7 @@
 
             mCalled = false;
             mInstrumentation.callActivityOnStop(this);
-            writeEventLog(LOG_AM_ON_STOP_CALLED, reason);
+            EventLogTags.writeWmOnStopCalled(mIdent, getComponentName().getClassName(), reason);
             if (!mCalled) {
                 throw new SuperNotCalledException(
                     "Activity " + mComponent.toShortString() +
@@ -8140,7 +8136,8 @@
         mWindow.destroy();
         mFragments.dispatchDestroy();
         onDestroy();
-        writeEventLog(LOG_AM_ON_DESTROY_CALLED, "performDestroy");
+        EventLogTags.writeWmOnDestroyCalled(mIdent, getComponentName().getClassName(),
+                "performDestroy");
         mFragments.doLoaderDestroy();
         if (mVoiceInteractor != null) {
             mVoiceInteractor.detachActivity();
@@ -8233,7 +8230,9 @@
                 frag.onActivityResult(requestCode, resultCode, data);
             }
         }
-        writeEventLog(LOG_AM_ON_ACTIVITY_RESULT_CALLED, reason);
+
+        EventLogTags.writeWmOnActivityResultCalled(mIdent, getComponentName().getClassName(),
+                reason);
     }
 
     /**
@@ -8660,11 +8659,6 @@
         }
     }
 
-    /** Log a lifecycle event for current user id and component class. */
-    private void writeEventLog(int event, String reason) {
-        EventLog.writeEvent(event, mIdent, getComponentName().getClassName(), reason);
-    }
-
     class HostCallbacks extends FragmentHostCallback<Activity> {
         public HostCallbacks() {
             super(Activity.this /*activity*/);
diff --git a/core/java/android/app/EventLogTags.logtags b/core/java/android/app/EventLogTags.logtags
new file mode 100644
index 0000000..6296a68
--- /dev/null
+++ b/core/java/android/app/EventLogTags.logtags
@@ -0,0 +1,36 @@
+# See system/core/logcat/event.logtags for a description of the format of this file.
+
+option java_package android.app
+
+# Do not change these names without updating the checkin_events setting in
+# google3/googledata/wireless/android/provisioning/gservices.config !!
+#
+# The activity's onPause has been called.
+30021 wm_on_paused_called (Token|1|5),(Component Name|3),(Reason|3)
+# The activity's onResume has been called.
+30022 wm_on_resume_called (Token|1|5),(Component Name|3),(Reason|3)
+
+# Attempting to stop an activity
+30048 wm_stop_activity (User|1|5),(Token|1|5),(Component Name|3)
+# The activity's onStop has been called.
+30049 wm_on_stop_called (Token|1|5),(Component Name|3),(Reason|3)
+
+# The activity's onCreate has been called.
+30057 wm_on_create_called (Token|1|5),(Component Name|3),(Reason|3)
+# The activity's onRestart has been called.
+30058 wm_on_restart_called (Token|1|5),(Component Name|3),(Reason|3)
+# The activity's onStart has been called.
+30059 wm_on_start_called (Token|1|5),(Component Name|3),(Reason|3)
+# The activity's onDestroy has been called.
+30060 wm_on_destroy_called (Token|1|5),(Component Name|3),(Reason|3)
+# The activity's onActivityResult has been called.
+30062 wm_on_activity_result_called (Token|1|5),(Component Name|3),(Reason|3)
+
+# The activity's onTopResumedActivityChanged(true) has been called.
+30064 wm_on_top_resumed_gained_called (Token|1|5),(Component Name|3),(Reason|3)
+# The activity's onTopResumedActivityChanged(false) has been called.
+30065 wm_on_top_resumed_lost_called (Token|1|5),(Component Name|3),(Reason|3)
+
+# An activity been add into stopping list
+30066 wm_add_to_stopping (User|1|5),(Token|1|5),(Component Name|3),(Reason|3)
+
diff --git a/services/core/Android.bp b/services/core/Android.bp
index 594ac10..9291adc 100644
--- a/services/core/Android.bp
+++ b/services/core/Android.bp
@@ -86,6 +86,7 @@
         ":tethering-servicescore-srcs",
         "java/com/android/server/EventLogTags.logtags",
         "java/com/android/server/am/EventLogTags.logtags",
+        "java/com/android/server/wm/EventLogTags.logtags",
         "java/com/android/server/policy/EventLogTags.logtags",
     ],
 
diff --git a/services/core/java/com/android/server/EventLogTags.logtags b/services/core/java/com/android/server/EventLogTags.logtags
index bec08f4..b595eb1 100644
--- a/services/core/java/com/android/server/EventLogTags.logtags
+++ b/services/core/java/com/android/server/EventLogTags.logtags
@@ -175,27 +175,6 @@
 3121 pm_package_stats (manual_time|2|3),(quota_time|2|3),(manual_data|2|2),(quota_data|2|2),(manual_cache|2|2),(quota_cache|2|2)
 
 # ---------------------------
-# WindowManagerService.java
-# ---------------------------
-# Out of memory for surfaces.
-31000 wm_no_surface_memory (Window|3),(PID|1|5),(Operation|3)
-# Task created.
-31001 wm_task_created (TaskId|1|5),(StackId|1|5)
-# Task moved to top (1) or bottom (0).
-31002 wm_task_moved (TaskId|1|5),(ToTop|1),(Index|1)
-# Task removed with source explanation.
-31003 wm_task_removed (TaskId|1|5),(Reason|3)
-# Stack created.
-31004 wm_stack_created (StackId|1|5)
-# Home stack moved to top (1) or bottom (0).
-31005 wm_home_stack_moved (ToTop|1)
-# Stack removed.
-31006 wm_stack_removed (StackId|1|5)
-# bootanim finished:
-31007 wm_boot_animation_done (time|2|3)
-
-
-# ---------------------------
 # InputMethodManagerService.java
 # ---------------------------
 # Re-connecting to input method service because we haven't received its interface
diff --git a/services/core/java/com/android/server/am/ActivityManagerService.java b/services/core/java/com/android/server/am/ActivityManagerService.java
index 5b7a814..a95a463 100644
--- a/services/core/java/com/android/server/am/ActivityManagerService.java
+++ b/services/core/java/com/android/server/am/ActivityManagerService.java
@@ -2786,8 +2786,8 @@
                         int total = user + system + iowait + irq + softIrq + idle;
                         if (total == 0) total = 1;
 
-                        EventLog.writeEvent(EventLogTags.CPU,
-                                ((user+system+iowait+irq+softIrq) * 100) / total,
+                        EventLogTags.writeCpu(
+                                ((user + system + iowait + irq + softIrq) * 100) / total,
                                 (user * 100) / total,
                                 (system * 100) / total,
                                 (iowait * 100) / total,
@@ -3656,7 +3656,7 @@
             final ArrayList<ProcessMemInfo> memInfos
                     = doReport ? new ArrayList<ProcessMemInfo>(mProcessList.getLruSizeLocked())
                     : null;
-            EventLog.writeEvent(EventLogTags.AM_LOW_MEMORY, mProcessList.getLruSizeLocked());
+            EventLogTags.writeAmLowMemory(mProcessList.getLruSizeLocked());
             long now = SystemClock.uptimeMillis();
             for (int i = mProcessList.mLruProcesses.size() - 1; i >= 0; i--) {
                 ProcessRecord rec = mProcessList.mLruProcesses.get(i);
@@ -3737,8 +3737,8 @@
                 mAllowLowerMemLevel = false;
                 doLowMem = false;
             }
-            EventLog.writeEvent(EventLogTags.AM_PROC_DIED, app.userId, app.pid, app.processName,
-                    app.setAdj, app.setProcState);
+            EventLogTags.writeAmProcDied(app.userId, app.pid, app.processName, app.setAdj,
+                    app.setProcState);
             if (DEBUG_CLEANUP) Slog.v(TAG_CLEANUP,
                 "Dying app: " + app + ", pid: " + pid + ", thread: " + thread.asBinder());
             handleAppDiedLocked(app, false, true);
@@ -3761,7 +3761,8 @@
             // Execute the callback if there is any.
             doAppDiedCallbackLocked(app);
 
-            EventLog.writeEvent(EventLogTags.AM_PROC_DIED, app.userId, app.pid, app.processName);
+            EventLogTags.writeAmProcDied(app.userId, app.pid, app.processName, app.setAdj,
+                    app.setProcState);
         } else if (DEBUG_PROCESSES) {
             Slog.d(TAG_PROCESSES, "Received spurious death notification for thread "
                     + thread.asBinder());
@@ -4755,8 +4756,7 @@
 
         if (gone) {
             Slog.w(TAG, "Process " + app + " failed to attach");
-            EventLog.writeEvent(EventLogTags.AM_PROCESS_START_TIMEOUT, app.userId,
-                    pid, app.uid, app.processName);
+            EventLogTags.writeAmProcessStartTimeout(app.userId, pid, app.uid, app.processName);
             mProcessList.removeProcessNameLocked(app.processName, app.uid);
             mAtmInternal.clearHeavyWeightProcessIfEquals(app.getWindowProcessController());
             mBatteryStatsService.noteProcessFinish(app.processName, app.info.uid);
@@ -4847,7 +4847,7 @@
         if (app == null) {
             Slog.w(TAG, "No pending application record for pid " + pid
                     + " (IApplicationThread " + thread + "); dropping process");
-            EventLog.writeEvent(EventLogTags.AM_DROP_PROCESS, pid);
+            EventLogTags.writeAmDropProcess(pid);
             if (pid > 0 && pid != MY_PID) {
                 killProcessQuiet(pid);
                 //TODO: killProcessGroup(app.info.uid, pid);
@@ -4885,7 +4885,7 @@
             return false;
         }
 
-        EventLog.writeEvent(EventLogTags.AM_PROC_BOUND, app.userId, app.pid, app.processName);
+        EventLogTags.writeAmProcBound(app.userId, app.pid, app.processName);
 
         app.curAdj = app.setAdj = app.verifiedAdj = ProcessList.INVALID_ADJ;
         mOomAdjuster.setAttachingSchedGroupLocked(app);
@@ -7163,7 +7163,7 @@
                             + cpi.applicationInfo.packageName + "/"
                             + cpi.applicationInfo.uid + " for provider "
                             + name + ": launching app became null");
-                    EventLog.writeEvent(EventLogTags.AM_PROVIDER_LOST_PROCESS,
+                    EventLogTags.writeAmProviderLostProcess(
                             UserHandle.getUserId(cpi.applicationInfo.uid),
                             cpi.applicationInfo.packageName,
                             cpi.applicationInfo.uid, name);
@@ -9156,7 +9156,8 @@
         t.traceEnd(); // KillProcesses
 
         Slog.i(TAG, "System now ready");
-        EventLog.writeEvent(EventLogTags.BOOT_PROGRESS_AMS_READY, SystemClock.uptimeMillis());
+
+        EventLogTags.writeBootProgressAmsReady(SystemClock.uptimeMillis());
 
         t.traceBegin("updateTopComponentForFactoryTest");
         mAtmInternal.updateTopComponentForFactoryTest();
@@ -9410,7 +9411,8 @@
      */
     void handleApplicationCrashInner(String eventType, ProcessRecord r, String processName,
             ApplicationErrorReport.CrashInfo crashInfo) {
-        EventLog.writeEvent(EventLogTags.AM_CRASH, Binder.getCallingPid(),
+
+        EventLogTags.writeAmCrash(Binder.getCallingPid(),
                 UserHandle.getUserId(Binder.getCallingUid()), processName,
                 r == null ? -1 : r.info.flags,
                 crashInfo.exceptionClassName,
@@ -9613,7 +9615,7 @@
         final String processName = app == null ? "system_server"
                 : (r == null ? "unknown" : r.processName);
 
-        EventLog.writeEvent(EventLogTags.AM_WTF, UserHandle.getUserId(callingUid), callingPid,
+        EventLogTags.writeAmWtf(UserHandle.getUserId(callingUid), callingPid,
                 processName, r == null ? -1 : r.info.flags, tag, crashInfo.exceptionMessage);
 
         StatsLog.write(StatsLog.WTF_OCCURRED, callingUid, tag, processName,
diff --git a/services/core/java/com/android/server/am/EventLogTags.logtags b/services/core/java/com/android/server/am/EventLogTags.logtags
index cf0de06..23674bb 100644
--- a/services/core/java/com/android/server/am/EventLogTags.logtags
+++ b/services/core/java/com/android/server/am/EventLogTags.logtags
@@ -13,32 +13,14 @@
 # Do not change these names without updating the checkin_events setting in
 # google3/googledata/wireless/android/provisioning/gservices.config !!
 #
-# An activity is being finished:
-30001 am_finish_activity (User|1|5),(Token|1|5),(Task ID|1|5),(Component Name|3),(Reason|3)
-# A task is being brought to the front of the screen:
-30002 am_task_to_front (User|1|5),(Task|1|5)
-# An existing activity is being given a new intent:
-30003 am_new_intent (User|1|5),(Token|1|5),(Task ID|1|5),(Component Name|3),(Action|3),(MIME Type|3),(URI|3),(Flags|1|5)
-# A new task is being created:
-30004 am_create_task (User|1|5),(Task ID|1|5)
-# A new activity is being created in an existing task:
-30005 am_create_activity (User|1|5),(Token|1|5),(Task ID|1|5),(Component Name|3),(Action|3),(MIME Type|3),(URI|3),(Flags|1|5)
-# An activity has been resumed into the foreground but was not already running:
-30006 am_restart_activity (User|1|5),(Token|1|5),(Task ID|1|5),(Component Name|3)
-# An activity has been resumed and is now in the foreground:
-30007 am_resume_activity (User|1|5),(Token|1|5),(Task ID|1|5),(Component Name|3)
 # Application Not Responding
 30008 am_anr (User|1|5),(pid|1|5),(Package Name|3),(Flags|1|5),(reason|3)
-# Activity launch time
-30009 am_activity_launch_time (User|1|5),(Token|1|5),(Component Name|3),(time|2|3)
+
 # Application process bound to work
 30010 am_proc_bound (User|1|5),(PID|1|5),(Process Name|3)
 # Application process died
 30011 am_proc_died (User|1|5),(PID|1|5),(Process Name|3),(OomAdj|1|5),(ProcState|1|5)
-# The Activity Manager failed to pause the given activity.
-30012 am_failed_to_pause (User|1|5),(Token|1|5),(Wanting to pause|3),(Currently pausing|3)
-# Attempting to pause the current activity
-30013 am_pause_activity (User|1|5),(Token|1|5),(Component Name|3),(User Leaving|3)
+
 # Application process has been started
 30014 am_proc_start (User|1|5),(PID|1|5),(UID|1|5),(Process Name|3),(Type|3),(Component|3)
 # An application process has been marked as bad
@@ -47,16 +29,7 @@
 30016 am_proc_good (User|1|5),(UID|1|5),(Process Name|3)
 # Reporting to applications that memory is low
 30017 am_low_memory (Num Processes|1|1)
-# An activity is being destroyed:
-30018 am_destroy_activity (User|1|5),(Token|1|5),(Task ID|1|5),(Component Name|3),(Reason|3)
-# An activity has been relaunched, resumed, and is now in the foreground:
-30019 am_relaunch_resume_activity (User|1|5),(Token|1|5),(Task ID|1|5),(Component Name|3)
-# An activity has been relaunched:
-30020 am_relaunch_activity (User|1|5),(Token|1|5),(Task ID|1|5),(Component Name|3)
-# The activity's onPause has been called.
-30021 am_on_paused_called (Token|1|5),(Component Name|3),(Reason|3)
-# The activity's onResume has been called.
-30022 am_on_resume_called (Token|1|5),(Component Name|3),(Reason|3)
+
 # Kill a process to reclaim memory.
 30023 am_kill (User|1|5),(PID|1|5),(Process Name|3),(OomAdj|1|5),(Reason|3)
 # Discard an undelivered serialized broadcast (timeout/ANR/crash)
@@ -87,12 +60,6 @@
 # User switched
 30041 am_switch_user (id|1|5)
 
-# Activity set to resumed
-30043 am_set_resumed_activity (User|1|5),(Component Name|3),(Reason|3)
-
-# Stack focus
-30044 am_focused_stack (User|1|5),(Display Id|1|5),(Focused Stack Id|1|5),(Last Focused Stack Id|1|5),(Reason|3)
-
 # Running pre boot receiver
 30045 am_pre_boot (User|1|5),(Package|3)
 
@@ -101,11 +68,6 @@
 # Report collection of memory used by a process
 30047 am_pss (Pid|1|5),(UID|1|5),(Process Name|3),(Pss|2|2),(Uss|2|2),(SwapPss|2|2),(Rss|2|2),(StatType|1|5),(ProcState|1|5),(TimeToCollect|2|2)
 
-# Attempting to stop an activity
-30048 am_stop_activity (User|1|5),(Token|1|5),(Component Name|3)
-# The activity's onStop has been called.
-30049 am_on_stop_called (Token|1|5),(Component Name|3),(Reason|3)
-
 # Report changing memory conditions (Values are ProcessStats.ADJ_MEM_FACTOR* constants)
 30050 am_mem_factor (Current|1|5),(Previous|1|5)
 
@@ -123,30 +85,6 @@
 # Note when a service is being forcibly stopped because its app went idle.
 30056 am_stop_idle_service (UID|1|5),(Component Name|3)
 
-# The activity's onCreate has been called.
-30057 am_on_create_called (Token|1|5),(Component Name|3),(Reason|3)
-# The activity's onRestart has been called.
-30058 am_on_restart_called (Token|1|5),(Component Name|3),(Reason|3)
-# The activity's onStart has been called.
-30059 am_on_start_called (Token|1|5),(Component Name|3),(Reason|3)
-# The activity's onDestroy has been called.
-30060 am_on_destroy_called (Token|1|5),(Component Name|3),(Reason|3)
-# The activity's onActivityResult has been called.
-30062 am_on_activity_result_called (Token|1|5),(Component Name|3),(Reason|3)
-
-# The task is being removed from its parent stack
-30061 am_remove_task (Task ID|1|5), (Stack ID|1|5)
-
 # The task is being compacted
 30063 am_compact (Pid|1|5),(Process Name|3),(Action|3),(BeforeRssTotal|2|2),(BeforeRssFile|2|2),(BeforeRssAnon|2|2),(BeforeRssSwap|2|2),(DeltaRssTotal|2|2),(DeltaRssFile|2|2),(DeltaRssAnon|2|2),(DeltaRssSwap|2|2),(Time|2|3),(LastAction|1|2),(LastActionTimestamp|2|3),(setAdj|1|2),(procState|1|2),(BeforeZRAMFree|2|2),(DeltaZRAMFree|2|2)
 
-# The activity's onTopResumedActivityChanged(true) has been called.
-30064 am_on_top_resumed_gained_called (Token|1|5),(Component Name|3),(Reason|3)
-# The activity's onTopResumedActivityChanged(false) has been called.
-30065 am_on_top_resumed_lost_called (Token|1|5),(Component Name|3),(Reason|3)
-
-# An activity been add into stopping list
-30066 am_add_to_stopping (User|1|5),(Token|1|5),(Component Name|3),(Reason|3)
-
-# Keyguard status changed
-+30067 am_set_keyguard_shown (keyguardShowing|1),(aodShowing|1),(keyguardGoingAway|1),(Reason|3)
\ No newline at end of file
diff --git a/services/core/java/com/android/server/wm/ActivityDisplay.java b/services/core/java/com/android/server/wm/ActivityDisplay.java
index be7dfe5..45e3c68 100644
--- a/services/core/java/com/android/server/wm/ActivityDisplay.java
+++ b/services/core/java/com/android/server/wm/ActivityDisplay.java
@@ -74,7 +74,6 @@
 
 import com.android.internal.annotations.VisibleForTesting;
 import com.android.internal.util.function.pooled.PooledLambda;
-import com.android.server.am.EventLogTags;
 import com.android.server.protolog.common.ProtoLog;
 
 import java.io.PrintWriter;
@@ -299,7 +298,7 @@
             final ActivityStack currentFocusedStack = getFocusedStack();
             if (currentFocusedStack != prevFocusedStack) {
                 mLastFocusedStack = prevFocusedStack;
-                EventLogTags.writeAmFocusedStack(mRootActivityContainer.mCurrentUser, mDisplayId,
+                EventLogTags.writeWmFocusedStack(mRootActivityContainer.mCurrentUser, mDisplayId,
                         currentFocusedStack == null ? -1 : currentFocusedStack.getStackId(),
                         mLastFocusedStack == null ? -1 : mLastFocusedStack.getStackId(),
                         updateLastFocusedStackReason);
diff --git a/services/core/java/com/android/server/wm/ActivityMetricsLogger.java b/services/core/java/com/android/server/wm/ActivityMetricsLogger.java
index 0a861ad..9fa5d9f1 100644
--- a/services/core/java/com/android/server/wm/ActivityMetricsLogger.java
+++ b/services/core/java/com/android/server/wm/ActivityMetricsLogger.java
@@ -56,13 +56,13 @@
 import static com.android.internal.logging.nano.MetricsProto.MetricsEvent.TYPE_TRANSITION_REPORTED_DRAWN_NO_BUNDLE;
 import static com.android.internal.logging.nano.MetricsProto.MetricsEvent.TYPE_TRANSITION_REPORTED_DRAWN_WITH_BUNDLE;
 import static com.android.internal.logging.nano.MetricsProto.MetricsEvent.TYPE_TRANSITION_WARM_LAUNCH;
-import static com.android.server.am.EventLogTags.AM_ACTIVITY_LAUNCH_TIME;
 import static com.android.server.am.MemoryStatUtil.MemoryStat;
 import static com.android.server.am.MemoryStatUtil.readMemoryStatFromFilesystem;
 import static com.android.server.wm.ActivityTaskManagerDebugConfig.DEBUG_METRICS;
 import static com.android.server.wm.ActivityTaskManagerDebugConfig.TAG_ATM;
 import static com.android.server.wm.ActivityTaskManagerDebugConfig.TAG_WITH_CLASS_NAME;
 import static com.android.server.wm.ActivityTaskManagerInternal.APP_TRANSITION_TIMEOUT;
+import static com.android.server.wm.EventLogTags.WM_ACTIVITY_LAUNCH_TIME;
 
 import android.app.WaitResult;
 import android.app.WindowConfiguration.WindowingMode;
@@ -805,7 +805,7 @@
             return;
         }
 
-        EventLog.writeEvent(AM_ACTIVITY_LAUNCH_TIME,
+        EventLog.writeEvent(WM_ACTIVITY_LAUNCH_TIME,
                 info.userId, info.activityRecordIdHashCode, info.launchedActivityShortComponentName,
                 info.windowsDrawnDelayMs);
 
diff --git a/services/core/java/com/android/server/wm/ActivityRecord.java b/services/core/java/com/android/server/wm/ActivityRecord.java
index f627dda..23b59c1 100644
--- a/services/core/java/com/android/server/wm/ActivityRecord.java
+++ b/services/core/java/com/android/server/wm/ActivityRecord.java
@@ -122,8 +122,6 @@
 import static com.android.server.am.ActivityRecordProto.TRANSLUCENT;
 import static com.android.server.am.ActivityRecordProto.VISIBLE;
 import static com.android.server.am.ActivityRecordProto.VISIBLE_REQUESTED;
-import static com.android.server.am.EventLogTags.AM_RELAUNCH_ACTIVITY;
-import static com.android.server.am.EventLogTags.AM_RELAUNCH_RESUME_ACTIVITY;
 import static com.android.server.policy.WindowManagerPolicy.FINISH_LAYOUT_REDO_ANIM;
 import static com.android.server.policy.WindowManagerPolicy.FINISH_LAYOUT_REDO_WALLPAPER;
 import static com.android.server.wm.ActivityStack.ActivityState.DESTROYED;
@@ -306,7 +304,6 @@
 import com.android.server.AttributeCache;
 import com.android.server.LocalServices;
 import com.android.server.am.AppTimeTracker;
-import com.android.server.am.EventLogTags;
 import com.android.server.am.PendingIntentRecord;
 import com.android.server.display.color.ColorDisplayService;
 import com.android.server.policy.WindowManagerPolicy;
@@ -2379,8 +2376,7 @@
             // Make a local reference to its task since this.task could be set to null once this
             // activity is destroyed and detached from task.
             final Task task = getTask();
-            EventLog.writeEvent(EventLogTags.AM_FINISH_ACTIVITY,
-                    mUserId, System.identityHashCode(this),
+            EventLogTags.writeWmFinishActivity(mUserId, System.identityHashCode(this),
                     task.mTaskId, shortComponentName, reason);
             final ArrayList<ActivityRecord> activities = task.mChildren;
             final int index = activities.indexOf(this);
@@ -2655,8 +2651,8 @@
             return false;
         }
 
-        EventLog.writeEvent(EventLogTags.AM_DESTROY_ACTIVITY, mUserId,
-                System.identityHashCode(this), task.mTaskId, shortComponentName, reason);
+        EventLogTags.writeWmDestroyActivity(mUserId, System.identityHashCode(this),
+                task.mTaskId, shortComponentName, reason);
 
         final ActivityStack stack = getActivityStack();
         if (hasProcess() && !stack.inLruList(this)) {
@@ -4739,7 +4735,7 @@
             if (!mVisibleRequested) {
                 setVisibility(false);
             }
-            EventLogTags.writeAmStopActivity(
+            EventLogTags.writeWmStopActivity(
                     mUserId, System.identityHashCode(this), shortComponentName);
             mAtmService.getLifecycleManager().scheduleTransaction(app.getThread(), appToken,
                     StopActivityItem.obtain(mVisibleRequested, configChangeFlags));
@@ -4808,8 +4804,8 @@
 
     void addToStopping(boolean scheduleIdle, boolean idleDelayed, String reason) {
         if (!mStackSupervisor.mStoppingActivities.contains(this)) {
-            EventLog.writeEvent(EventLogTags.AM_ADD_TO_STOPPING, mUserId,
-                    System.identityHashCode(this), shortComponentName, reason);
+            EventLogTags.writeWmAddToStopping(mUserId, System.identityHashCode(this),
+                    shortComponentName, reason);
             mStackSupervisor.mStoppingActivities.add(this);
         }
 
@@ -6939,9 +6935,13 @@
                 "Relaunching: " + this + " with results=" + pendingResults
                         + " newIntents=" + pendingNewIntents + " andResume=" + andResume
                         + " preserveWindow=" + preserveWindow);
-        EventLog.writeEvent(andResume ? AM_RELAUNCH_RESUME_ACTIVITY
-                        : AM_RELAUNCH_ACTIVITY, mUserId, System.identityHashCode(this),
-                task.mTaskId, shortComponentName);
+        if (andResume) {
+            EventLogTags.writeWmRelaunchResumeActivity(mUserId, System.identityHashCode(this),
+                    task.mTaskId, shortComponentName);
+        } else {
+            EventLogTags.writeWmRelaunchActivity(mUserId, System.identityHashCode(this),
+                    task.mTaskId, shortComponentName);
+        }
 
         startFreezingScreenLocked(0);
 
diff --git a/services/core/java/com/android/server/wm/ActivityStack.java b/services/core/java/com/android/server/wm/ActivityStack.java
index f1c47eb..6ddbb0d 100644
--- a/services/core/java/com/android/server/wm/ActivityStack.java
+++ b/services/core/java/com/android/server/wm/ActivityStack.java
@@ -84,7 +84,6 @@
 import static com.android.server.wm.ActivityTaskManagerDebugConfig.DEBUG_TASKS;
 import static com.android.server.wm.ActivityTaskManagerDebugConfig.DEBUG_TRANSITION;
 import static com.android.server.wm.ActivityTaskManagerDebugConfig.DEBUG_USER_LEAVING;
-import static com.android.server.wm.ActivityTaskManagerDebugConfig.DEBUG_VISIBILITY;
 import static com.android.server.wm.ActivityTaskManagerDebugConfig.POSTFIX_ADD_REMOVE;
 import static com.android.server.wm.ActivityTaskManagerDebugConfig.POSTFIX_APP;
 import static com.android.server.wm.ActivityTaskManagerDebugConfig.POSTFIX_CLEANUP;
@@ -163,7 +162,6 @@
 import android.service.voice.IVoiceInteractionSession;
 import android.util.ArraySet;
 import android.util.DisplayMetrics;
-import android.util.EventLog;
 import android.util.IntArray;
 import android.util.Log;
 import android.util.Slog;
@@ -185,7 +183,6 @@
 import com.android.server.am.ActivityManagerService;
 import com.android.server.am.ActivityManagerService.ItemMatcher;
 import com.android.server.am.AppTimeTracker;
-import com.android.server.am.EventLogTags;
 
 import java.io.FileDescriptor;
 import java.io.PrintWriter;
@@ -533,7 +530,7 @@
         mDockedStackMinimizeThickness =
                 supervisor.mService.mWindowManager.mContext.getResources().getDimensionPixelSize(
                         com.android.internal.R.dimen.docked_stack_minimize_thickness);
-        EventLog.writeEvent(com.android.server.EventLogTags.WM_STACK_CREATED, stackId);
+        EventLogTags.writeWmStackCreated(stackId);
         mStackSupervisor = supervisor;
         mService = supervisor.mService;
         mRootActivityContainer = mService.mRootActivityContainer;
@@ -1586,7 +1583,7 @@
         if (prev.attachedToProcess()) {
             if (DEBUG_PAUSE) Slog.v(TAG_PAUSE, "Enqueueing pending pause: " + prev);
             try {
-                EventLogTags.writeAmPauseActivity(prev.mUserId, System.identityHashCode(prev),
+                EventLogTags.writeWmPauseActivity(prev.mUserId, System.identityHashCode(prev),
                         prev.shortComponentName, "userLeaving=" + userLeaving);
 
                 mService.getLifecycleManager().scheduleTransaction(prev.app.getThread(),
@@ -1663,10 +1660,9 @@
                 }
                 return;
             } else {
-                EventLog.writeEvent(EventLogTags.AM_FAILED_TO_PAUSE,
-                        r.mUserId, System.identityHashCode(r), r.shortComponentName,
-                        mPausingActivity != null
-                            ? mPausingActivity.shortComponentName : "(none)");
+                EventLogTags.writeWmFailedToPause(r.mUserId, System.identityHashCode(r),
+                        r.shortComponentName, mPausingActivity != null
+                                ? mPausingActivity.shortComponentName : "(none)");
                 if (r.isState(PAUSING)) {
                     r.setState(PAUSED, "activityPausedLocked");
                     if (r.finishing) {
@@ -2659,9 +2655,8 @@
                 // Clear app token stopped state in window manager if needed.
                 next.notifyAppResumed(next.stopped);
 
-                EventLog.writeEvent(EventLogTags.AM_RESUME_ACTIVITY, next.mUserId,
-                        System.identityHashCode(next), next.getTask().mTaskId,
-                        next.shortComponentName);
+                EventLogTags.writeWmResumeActivity(next.mUserId, System.identityHashCode(next),
+                        next.getTask().mTaskId, next.shortComponentName);
 
                 next.sleeping = false;
                 mService.getAppWarningsLocked().onResumeActivity(next);
@@ -3519,10 +3514,9 @@
                                 + " state=" + r.getState() + " callers=" + Debug.getCallers(5));
                         if (!r.finishing || isProcessRemoved) {
                             Slog.w(TAG, "Force removing " + r + ": app died, no saved state");
-                            EventLog.writeEvent(EventLogTags.AM_FINISH_ACTIVITY,
-                                    r.mUserId, System.identityHashCode(r),
-                                    r.getTask().mTaskId, r.shortComponentName,
-                                    "proc died without state saved");
+                            EventLogTags.writeWmFinishActivity(r.mUserId,
+                                    System.identityHashCode(r), r.getTask().mTaskId,
+                                    r.shortComponentName, "proc died without state saved");
                         }
                     } else {
                         // We have the current state for this activity, so
@@ -3634,7 +3628,7 @@
             }
 
             mRootActivityContainer.resumeFocusedStacksTopActivities();
-            EventLog.writeEvent(EventLogTags.AM_TASK_TO_FRONT, tr.mUserId, tr.mTaskId);
+            EventLogTags.writeWmTaskToFront(tr.mUserId, tr.mTaskId);
             mService.getTaskChangeNotificationController().notifyTaskMovedToFront(tr.getTaskInfo());
         } finally {
             getDisplay().continueUpdateImeTarget();
@@ -4141,7 +4135,7 @@
 
         super.removeChild(child);
 
-        EventLog.writeEvent(EventLogTags.AM_REMOVE_TASK, child.mTaskId, mStackId);
+        EventLogTags.writeWmRemoveTask(child.mTaskId, mStackId);
 
         if (display.isSingleTaskInstance()) {
             mService.notifySingleTaskDisplayEmpty(display.mDisplayId);
@@ -4820,9 +4814,7 @@
         }
 
         final int toTop = targetPosition == mChildren.size() - 1 ? 1 : 0;
-        EventLog.writeEvent(com.android.server.EventLogTags.WM_TASK_MOVED, child.mTaskId, toTop,
-                targetPosition);
-
+        EventLogTags.writeWmTaskMoved(child.mTaskId, toTop, targetPosition);
         return targetPosition;
     }
 
@@ -4872,8 +4864,7 @@
         }
         super.onParentChanged(newParent, oldParent);
         if (getParent() == null && mDisplayContent != null) {
-            EventLog.writeEvent(com.android.server.EventLogTags.WM_STACK_REMOVED, mStackId);
-
+            EventLogTags.writeWmStackRemoved(mStackId);
             mDisplayContent = null;
             mWmService.mWindowPlacerLocked.requestTraversal();
         }
diff --git a/services/core/java/com/android/server/wm/ActivityStackSupervisor.java b/services/core/java/com/android/server/wm/ActivityStackSupervisor.java
index 304f230..d088a5e 100644
--- a/services/core/java/com/android/server/wm/ActivityStackSupervisor.java
+++ b/services/core/java/com/android/server/wm/ActivityStackSupervisor.java
@@ -126,7 +126,6 @@
 import android.provider.MediaStore;
 import android.util.ArrayMap;
 import android.util.ArraySet;
-import android.util.EventLog;
 import android.util.MergedConfiguration;
 import android.util.Slog;
 import android.util.SparseArray;
@@ -141,7 +140,6 @@
 import com.android.internal.util.ArrayUtils;
 import com.android.internal.util.function.pooled.PooledLambda;
 import com.android.server.am.ActivityManagerService;
-import com.android.server.am.EventLogTags;
 import com.android.server.am.UserState;
 
 import java.io.FileDescriptor;
@@ -823,8 +821,8 @@
                         "Launching: " + r + " savedState=" + r.getSavedState()
                                 + " with results=" + results + " newIntents=" + newIntents
                                 + " andResume=" + andResume);
-                EventLog.writeEvent(EventLogTags.AM_RESTART_ACTIVITY, r.mUserId,
-                        System.identityHashCode(r), task.mTaskId, r.shortComponentName);
+                EventLogTags.writeWmRestartActivity(r.mUserId, System.identityHashCode(r),
+                        task.mTaskId, r.shortComponentName);
                 if (r.isActivityTypeHome()) {
                     // Home process is the root process of the task.
                     updateHomeProcess(task.getChildAt(0).app);
diff --git a/services/core/java/com/android/server/wm/ActivityStarter.java b/services/core/java/com/android/server/wm/ActivityStarter.java
index 8455c6d..0f912f1 100644
--- a/services/core/java/com/android/server/wm/ActivityStarter.java
+++ b/services/core/java/com/android/server/wm/ActivityStarter.java
@@ -60,7 +60,6 @@
 import static android.view.Display.DEFAULT_DISPLAY;
 import static android.view.Display.INVALID_DISPLAY;
 
-import static com.android.server.am.EventLogTags.AM_NEW_INTENT;
 import static com.android.server.wm.ActivityStack.ActivityState.RESUMED;
 import static com.android.server.wm.ActivityStackSupervisor.DEFER_RESUME;
 import static com.android.server.wm.ActivityStackSupervisor.ON_TOP;
@@ -114,14 +113,12 @@
 import android.service.voice.IVoiceInteractionSession;
 import android.text.TextUtils;
 import android.util.ArraySet;
-import android.util.EventLog;
 import android.util.Pools.SynchronizedPool;
 import android.util.Slog;
 
 import com.android.internal.annotations.VisibleForTesting;
 import com.android.internal.app.HeavyWeightSwitcherActivity;
 import com.android.internal.app.IVoiceInteractor;
-import com.android.server.am.EventLogTags;
 import com.android.server.am.PendingIntentRecord;
 import com.android.server.pm.InstantAppResolver;
 import com.android.server.wm.ActivityStackSupervisor.PendingActivityLaunch;
@@ -1550,11 +1547,12 @@
                 UserHandle.getAppId(mStartActivity.info.applicationInfo.uid)
         );
         if (newTask) {
-            EventLog.writeEvent(EventLogTags.AM_CREATE_TASK, mStartActivity.mUserId,
+            EventLogTags.writeWmCreateTask(mStartActivity.mUserId,
                     mStartActivity.getTask().mTaskId);
         }
         mStartActivity.logStartActivity(
-                EventLogTags.AM_CREATE_ACTIVITY, mStartActivity.getTask());
+                EventLogTags.WM_CREATE_ACTIVITY, mStartActivity.getTask());
+
         mTargetStack.mLastPausedActivity = null;
 
         mRootActivityContainer.sendPowerHintForLaunchStartIfNeeded(
@@ -2405,7 +2403,7 @@
             return;
         }
 
-        activity.logStartActivity(AM_NEW_INTENT, activity.getTask());
+        activity.logStartActivity(EventLogTags.WM_NEW_INTENT, activity.getTask());
         activity.deliverNewIntentLocked(mCallingUid, mStartActivity.intent,
                 mStartActivity.launchedFromPackage);
         mIntentDelivered = true;
diff --git a/services/core/java/com/android/server/wm/ActivityTaskManagerService.java b/services/core/java/com/android/server/wm/ActivityTaskManagerService.java
index bef4f5a..bcd5d36 100644
--- a/services/core/java/com/android/server/wm/ActivityTaskManagerService.java
+++ b/services/core/java/com/android/server/wm/ActivityTaskManagerService.java
@@ -83,6 +83,8 @@
 import static com.android.server.am.ActivityManagerServiceDumpProcessesProto.SCREEN_COMPAT_PACKAGES;
 import static com.android.server.am.ActivityManagerServiceDumpProcessesProto.ScreenCompatPackage.MODE;
 import static com.android.server.am.ActivityManagerServiceDumpProcessesProto.ScreenCompatPackage.PACKAGE;
+import static com.android.server.am.EventLogTags.writeBootProgressEnableScreen;
+import static com.android.server.am.EventLogTags.writeConfigurationChanged;
 import static com.android.server.wm.ActivityStack.ActivityState.DESTROYED;
 import static com.android.server.wm.ActivityStack.ActivityState.DESTROYING;
 import static com.android.server.wm.ActivityStackSupervisor.DEFER_RESUME;
@@ -215,7 +217,6 @@
 import android.text.format.TimeMigrationUtils;
 import android.util.ArrayMap;
 import android.util.ArraySet;
-import android.util.EventLog;
 import android.util.Log;
 import android.util.Slog;
 import android.util.SparseArray;
@@ -258,7 +259,6 @@
 import com.android.server.am.ActivityManagerServiceDumpProcessesProto;
 import com.android.server.am.AppTimeTracker;
 import com.android.server.am.BaseErrorDialog;
-import com.android.server.am.EventLogTags;
 import com.android.server.am.PendingIntentController;
 import com.android.server.am.PendingIntentRecord;
 import com.android.server.am.UserState;
@@ -5195,8 +5195,7 @@
 
         if (DEBUG_SWITCH || DEBUG_CONFIGURATION) Slog.i(TAG_CONFIGURATION,
                 "Updating global configuration to: " + values);
-
-        EventLog.writeEvent(EventLogTags.CONFIGURATION_CHANGED, changes);
+        writeConfigurationChanged(changes);
         StatsLog.write(StatsLog.RESOURCE_CONFIGURATION_CHANGED,
                 values.colorMode,
                 values.densityDpi,
@@ -5359,8 +5358,7 @@
     }
 
     void enableScreenAfterBoot(boolean booted) {
-        EventLog.writeEvent(EventLogTags.BOOT_PROGRESS_ENABLE_SCREEN,
-                SystemClock.uptimeMillis());
+        writeBootProgressEnableScreen(SystemClock.uptimeMillis());
         mWindowManager.enableScreenAfterBoot();
 
         synchronized (mGlobalLock) {
@@ -5491,7 +5489,7 @@
         applyUpdateLockStateLocked(r);
         applyUpdateVrModeLocked(r);
 
-        EventLogTags.writeAmSetResumedActivity(
+        EventLogTags.writeWmSetResumedActivity(
                 r == null ? -1 : r.mUserId,
                 r == null ? "NULL" : r.shortComponentName,
                 reason);
@@ -6419,8 +6417,7 @@
         @Override
         public void enableScreenAfterBoot(boolean booted) {
             synchronized (mGlobalLock) {
-                EventLog.writeEvent(EventLogTags.BOOT_PROGRESS_ENABLE_SCREEN,
-                        SystemClock.uptimeMillis());
+                writeBootProgressEnableScreen(SystemClock.uptimeMillis());
                 mWindowManager.enableScreenAfterBoot();
                 updateEventDispatchingLocked(booted);
             }
diff --git a/services/core/java/com/android/server/wm/EventLogTags.logtags b/services/core/java/com/android/server/wm/EventLogTags.logtags
new file mode 100644
index 0000000..aab901e
--- /dev/null
+++ b/services/core/java/com/android/server/wm/EventLogTags.logtags
@@ -0,0 +1,77 @@
+# See system/core/logcat/event.logtags for a description of the format of this file.
+
+option java_package com.android.server.wm
+
+# Do not change these names without updating the checkin_events setting in
+# google3/googledata/wireless/android/provisioning/gservices.config !!
+#
+# An activity is being finished:
+30001 wm_finish_activity (User|1|5),(Token|1|5),(Task ID|1|5),(Component Name|3),(Reason|3)
+# A task is being brought to the front of the screen:
+30002 wm_task_to_front (User|1|5),(Task|1|5)
+# An existing activity is being given a new intent:
+30003 wm_new_intent (User|1|5),(Token|1|5),(Task ID|1|5),(Component Name|3),(Action|3),(MIME Type|3),(URI|3),(Flags|1|5)
+# A new task is being created:
+30004 wm_create_task (User|1|5),(Task ID|1|5)
+# A new activity is being created in an existing task:
+30005 wm_create_activity (User|1|5),(Token|1|5),(Task ID|1|5),(Component Name|3),(Action|3),(MIME Type|3),(URI|3),(Flags|1|5)
+# An activity has been resumed into the foreground but was not already running:
+30006 wm_restart_activity (User|1|5),(Token|1|5),(Task ID|1|5),(Component Name|3)
+# An activity has been resumed and is now in the foreground:
+30007 wm_resume_activity (User|1|5),(Token|1|5),(Task ID|1|5),(Component Name|3)
+
+# Activity launch time
+30009 wm_activity_launch_time (User|1|5),(Token|1|5),(Component Name|3),(time|2|3)
+
+# The Activity Manager failed to pause the given activity.
+30012 wm_failed_to_pause (User|1|5),(Token|1|5),(Wanting to pause|3),(Currently pausing|3)
+# Attempting to pause the current activity
+30013 wm_pause_activity (User|1|5),(Token|1|5),(Component Name|3),(User Leaving|3)
+# Application process has been started
+
+# An activity is being destroyed:
+30018 wm_destroy_activity (User|1|5),(Token|1|5),(Task ID|1|5),(Component Name|3),(Reason|3)
+# An activity has been relaunched, resumed, and is now in the foreground:
+30019 wm_relaunch_resume_activity (User|1|5),(Token|1|5),(Task ID|1|5),(Component Name|3)
+# An activity has been relaunched:
+30020 wm_relaunch_activity (User|1|5),(Token|1|5),(Task ID|1|5),(Component Name|3)
+# The activity's onPause has been called.
+30021 wm_on_paused_called (Token|1|5),(Component Name|3),(Reason|3)
+# The activity's onResume has been called.
+30022 wm_on_resume_called (Token|1|5),(Component Name|3),(Reason|3)
+
+# Activity set to resumed
+30043 wm_set_resumed_activity (User|1|5),(Component Name|3),(Reason|3)
+
+# Stack focus
+30044 wm_focused_stack (User|1|5),(Display Id|1|5),(Focused Stack Id|1|5),(Last Focused Stack Id|1|5),(Reason|3)
+
+# Attempting to stop an activity
+30048 wm_stop_activity (User|1|5),(Token|1|5),(Component Name|3)
+
+# The task is being removed from its parent stack
+30061 wm_remove_task (Task ID|1|5), (Stack ID|1|5)
+
+# An activity been add into stopping list
+30066 wm_add_to_stopping (User|1|5),(Token|1|5),(Component Name|3),(Reason|3)
+
+# Keyguard status changed
+30067 wm_set_keyguard_shown (keyguardShowing|1),(aodShowing|1),(keyguardGoingAway|1),(Reason|3)
+
+# Out of memory for surfaces.
+31000 wm_no_surface_memory (Window|3),(PID|1|5),(Operation|3)
+# Task created.
+31001 wm_task_created (TaskId|1|5),(StackId|1|5)
+# Task moved to top (1) or bottom (0).
+31002 wm_task_moved (TaskId|1|5),(ToTop|1),(Index|1)
+# Task removed with source explanation.
+31003 wm_task_removed (TaskId|1|5),(Reason|3)
+# Stack created.
+31004 wm_stack_created (StackId|1|5)
+# Home stack moved to top (1) or bottom (0).
+31005 wm_home_stack_moved (ToTop|1)
+# Stack removed.
+31006 wm_stack_removed (StackId|1|5)
+# bootanim finished:
+31007 wm_boot_animation_done (time|2|3)
+
diff --git a/services/core/java/com/android/server/wm/KeyguardController.java b/services/core/java/com/android/server/wm/KeyguardController.java
index 52cc422..3b58eca 100644
--- a/services/core/java/com/android/server/wm/KeyguardController.java
+++ b/services/core/java/com/android/server/wm/KeyguardController.java
@@ -43,13 +43,11 @@
 import android.os.IBinder;
 import android.os.RemoteException;
 import android.os.Trace;
-import android.util.EventLog;
 import android.util.Slog;
 import android.util.SparseArray;
 import android.util.proto.ProtoOutputStream;
 
 import com.android.internal.policy.IKeyguardDismissCallback;
-import com.android.server.am.EventLogTags;
 import com.android.server.policy.WindowManagerPolicy;
 import com.android.server.wm.ActivityTaskManagerInternal.SleepToken;
 
@@ -143,7 +141,7 @@
         if (!keyguardChanged && !aodChanged) {
             return;
         }
-        EventLog.writeEvent(EventLogTags.AM_SET_KEYGUARD_SHOWN,
+        EventLogTags.writeWmSetKeyguardShown(
                 keyguardShowing ? 1 : 0,
                 aodShowing ? 1 : 0,
                 mKeyguardGoingAway ? 1 : 0,
@@ -184,7 +182,7 @@
         mService.deferWindowLayout();
         try {
             setKeyguardGoingAway(true);
-            EventLog.writeEvent(EventLogTags.AM_SET_KEYGUARD_SHOWN,
+            EventLogTags.writeWmSetKeyguardShown(
                     1 /* keyguardShowing */,
                     mAodShowing ? 1 : 0,
                     1 /* keyguardGoingAway */,
diff --git a/services/core/java/com/android/server/wm/RootWindowContainer.java b/services/core/java/com/android/server/wm/RootWindowContainer.java
index 565f95e..5ec9599 100644
--- a/services/core/java/com/android/server/wm/RootWindowContainer.java
+++ b/services/core/java/com/android/server/wm/RootWindowContainer.java
@@ -68,7 +68,6 @@
 import android.os.Trace;
 import android.os.UserHandle;
 import android.util.ArraySet;
-import android.util.EventLog;
 import android.util.Slog;
 import android.util.SparseIntArray;
 import android.util.proto.ProtoOutputStream;
@@ -77,7 +76,6 @@
 import android.view.SurfaceControl;
 import android.view.WindowManager;
 
-import com.android.server.EventLogTags;
 import com.android.server.protolog.common.ProtoLog;
 
 import java.io.PrintWriter;
@@ -488,10 +486,8 @@
         final WindowSurfaceController surfaceController = winAnimator.mSurfaceController;
         boolean leakedSurface = false;
         boolean killedApps = false;
-
-        EventLog.writeEvent(EventLogTags.WM_NO_SURFACE_MEMORY, winAnimator.mWin.toString(),
+        EventLogTags.writeWmNoSurfaceMemory(winAnimator.mWin.toString(),
                 winAnimator.mSession.mPid, operation);
-
         final long callingIdentity = Binder.clearCallingIdentity();
         try {
             // There was some problem...first, do a sanity check of the window list to make sure
diff --git a/services/core/java/com/android/server/wm/Task.java b/services/core/java/com/android/server/wm/Task.java
index 3b16b59..7a8614b 100644
--- a/services/core/java/com/android/server/wm/Task.java
+++ b/services/core/java/com/android/server/wm/Task.java
@@ -56,8 +56,6 @@
 import static android.view.Display.DEFAULT_DISPLAY;
 import static android.view.SurfaceControl.METADATA_TASK_ID;
 
-import static com.android.server.EventLogTags.WM_TASK_CREATED;
-import static com.android.server.EventLogTags.WM_TASK_REMOVED;
 import static com.android.server.am.TaskRecordProto.ACTIVITIES;
 import static com.android.server.am.TaskRecordProto.ACTIVITY_TYPE;
 import static com.android.server.am.TaskRecordProto.FULLSCREEN;
@@ -128,7 +126,6 @@
 import android.provider.Settings;
 import android.service.voice.IVoiceInteractionSession;
 import android.util.DisplayMetrics;
-import android.util.EventLog;
 import android.util.Slog;
 import android.util.proto.ProtoOutputStream;
 import android.view.Display;
@@ -421,8 +418,7 @@
             ActivityStack stack) {
         super(atmService.mWindowManager);
 
-        EventLog.writeEvent(WM_TASK_CREATED, _taskId,
-                stack != null ? stack.mStackId : INVALID_STACK_ID);
+        EventLogTags.writeWmTaskCreated(_taskId, stack != null ? stack.mStackId : INVALID_STACK_ID);
         mAtmService = atmService;
         mTaskId = _taskId;
         mUserId = _userId;
@@ -1301,7 +1297,7 @@
         } else if (!mReuseTask) {
             // Remove entire task if it doesn't have any activity left and it isn't marked for reuse
             mStack.removeChild(this, reason);
-            EventLog.writeEvent(WM_TASK_REMOVED, mTaskId,
+            EventLogTags.writeWmTaskRemoved(mTaskId,
                     "removeChild: last r=" + r + " in t=" + this);
             removeIfPossible();
         }
@@ -2306,7 +2302,7 @@
     @Override
     void removeImmediately() {
         if (DEBUG_STACK) Slog.i(TAG, "removeTask: removing taskId=" + mTaskId);
-        EventLog.writeEvent(WM_TASK_REMOVED, mTaskId, "removeTask");
+        EventLogTags.writeWmTaskRemoved(mTaskId, "removeTask");
         super.removeImmediately();
     }
 
@@ -2314,7 +2310,7 @@
     void reparent(ActivityStack stack, int position, boolean moveParents, String reason) {
         if (DEBUG_STACK) Slog.i(TAG, "reParentTask: removing taskId=" + mTaskId
                 + " from stack=" + getTaskStack());
-        EventLog.writeEvent(WM_TASK_REMOVED, mTaskId, "reParentTask");
+        EventLogTags.writeWmTaskRemoved(mTaskId, "reParentTask");
 
         final ActivityStack prevStack = getTaskStack();
         final boolean wasTopFocusedStack =
diff --git a/services/core/java/com/android/server/wm/WindowManagerService.java b/services/core/java/com/android/server/wm/WindowManagerService.java
index a2467e6..c937bfa 100644
--- a/services/core/java/com/android/server/wm/WindowManagerService.java
+++ b/services/core/java/com/android/server/wm/WindowManagerService.java
@@ -193,7 +193,6 @@
 import android.util.ArrayMap;
 import android.util.ArraySet;
 import android.util.DisplayMetrics;
-import android.util.EventLog;
 import android.util.Log;
 import android.util.MergedConfiguration;
 import android.util.Slog;
@@ -265,7 +264,6 @@
 import com.android.internal.view.WindowManagerPolicyThread;
 import com.android.server.AnimationThread;
 import com.android.server.DisplayThread;
-import com.android.server.EventLogTags;
 import com.android.server.FgThread;
 import com.android.server.LocalServices;
 import com.android.server.UiThread;
@@ -3327,7 +3325,7 @@
                 ProtoLog.e(WM_ERROR, "Boot completed: SurfaceFlinger is dead!");
             }
 
-            EventLog.writeEvent(EventLogTags.WM_BOOT_ANIMATION_DONE, SystemClock.uptimeMillis());
+            EventLogTags.writeWmBootAnimationDone(SystemClock.uptimeMillis());
             Trace.asyncTraceEnd(TRACE_TAG_WINDOW_MANAGER, "Stop bootanim", 0);
             mDisplayEnabled = true;
             ProtoLog.i(WM_DEBUG_SCREEN_ON, "******************** ENABLING SCREEN!");