[DO NOT MERGE] Add WW log for noti shade swipe down from home.

Bug: 171973663
Change-Id: I1e8ff20c62d4f91a05cb1cfc0337e351f2bc8885
(cherry picked from commit a87f99a35ae37dc4520834a80976306e4c388e88)
diff --git a/quickstep/src/com/android/launcher3/uioverrides/touchcontrollers/StatusBarTouchController.java b/quickstep/src/com/android/launcher3/uioverrides/touchcontrollers/StatusBarTouchController.java
index 16bd9ed..7a7cbb4 100644
--- a/quickstep/src/com/android/launcher3/uioverrides/touchcontrollers/StatusBarTouchController.java
+++ b/quickstep/src/com/android/launcher3/uioverrides/touchcontrollers/StatusBarTouchController.java
@@ -19,6 +19,7 @@
 import static android.view.MotionEvent.ACTION_MOVE;
 import static android.view.MotionEvent.ACTION_UP;
 import static android.view.MotionEvent.ACTION_CANCEL;
+import static com.android.launcher3.logging.StatsLogManager.LauncherEvent.LAUNCHER_SWIPE_DOWN_WORKSPACE_NOTISHADE_OPEN;
 
 import android.graphics.PointF;
 import android.util.SparseArray;
@@ -136,6 +137,8 @@
             mLauncher.getUserEventDispatcher().logActionOnContainer(action == ACTION_UP ?
                     Touch.FLING : Touch.SWIPE, Direction.DOWN, ContainerType.WORKSPACE,
                     mLauncher.getWorkspace().getCurrentPage());
+            mLauncher.getStatsLogManager().logger()
+                    .log(LAUNCHER_SWIPE_DOWN_WORKSPACE_NOTISHADE_OPEN);
             setWindowSlippery(false);
             return true;
         }
diff --git a/src/com/android/launcher3/logging/StatsLogManager.java b/src/com/android/launcher3/logging/StatsLogManager.java
index e754618..c4a4c98 100644
--- a/src/com/android/launcher3/logging/StatsLogManager.java
+++ b/src/com/android/launcher3/logging/StatsLogManager.java
@@ -319,8 +319,10 @@
         LAUNCHER_NAVIGATION_MODE_GESTURE_BUTTON(625),
 
         @UiEvent(doc = "User tapped on image content in Overview Select mode.")
-        LAUNCHER_SELECT_MODE_IMAGE(627);
+        LAUNCHER_SELECT_MODE_IMAGE(627),
 
+        @UiEvent(doc = "User swiped down on workspace (triggering noti shade to open).")
+        LAUNCHER_SWIPE_DOWN_WORKSPACE_NOTISHADE_OPEN(651);
         // ADD MORE
 
         private final int mId;