metrics: RecordUserAction no longer needs to run on the UI thread

https://source.chromium.org/chromium/chromium/src/+/d5c435e0b76ef29580d018cdbe8717fefd2ddd03

Bug: 1048429
Change-Id: Iaa866a5414324ba380d7d8fbc5fcc21ed1aa7ca0
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2037050Reviewed-by: Sky Malice <skym@chromium.org>
Reviewed-by: Ilya Sherman <isherman@chromium.org>
Reviewed-by: Yaron Friedman <yfriedman@chromium.org>
Commit-Queue: Yaron Friedman <yfriedman@chromium.org>
Auto-Submit: bttk <bttk@chromium.org>
Cr-Commit-Position: refs/heads/master@{#738752}

base/android/java/src/org/chromium/base/metrics/RecordUserAction.java

@@ -6,7 +6,6 @@ package org.chromium.base.metrics;
 
 import androidx.annotation.VisibleForTesting;
 
-import org.chromium.base.ThreadUtils;
 import org.chromium.base.annotations.CalledByNative;
 import org.chromium.base.annotations.JNINamespace;
 import org.chromium.base.annotations.NativeMethods;
@@ -38,18 +37,7 @@ public class RecordUserAction {
 
     public static void record(final String action) {
         if (sDisabledBy != null) return;
-
-        if (ThreadUtils.runningOnUiThread()) {
-            RecordUserActionJni.get().recordUserAction(action);
-            return;
-        }
-
-        ThreadUtils.runOnUiThread(new Runnable() {
-            @Override
-            public void run() {
-                RecordUserActionJni.get().recordUserAction(action);
-            }
-        });
+        RecordUserActionJni.get().recordUserAction(action);
     }
 
     /**