From: "Kevin F. Haggerty" <haggertk@lineageos.org>
Date: Sun, 27 Dec 2020 09:42:54 -0700
Subject: webview: Hard no to persistent histograms

* It's probably some kind of bug somewhere that these are never
  deleted, but they don't really add value to us in the first
  place.
* Stop eating 4MB every single time any app that uses webview
  ever opens.
* These were guarded by a feature check before
  https://chromium.googlesource.com/chromium/src/+/b86102f2a243

License: GPL-3.0-only - https://spdx.org/licenses/GPL-3.0-only.html
---
 android_webview/browser/aw_field_trials.cc | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/android_webview/browser/aw_field_trials.cc b/android_webview/browser/aw_field_trials.cc
--- a/android_webview/browser/aw_field_trials.cc
+++ b/android_webview/browser/aw_field_trials.cc
@@ -11,9 +11,4 @@
 #include "components/metrics/persistent_histograms.h"
 
 void AwFieldTrials::SetUpFieldTrials() {
-  // Persistent histograms must be enabled as soon as possible.
-  base::FilePath metrics_dir;
-  if (base::PathService::Get(base::DIR_ANDROID_APP_DATA, &metrics_dir)) {
-    InstantiatePersistentHistograms(metrics_dir);
-  }
 }
--
2.25.1
