Clear gesture.config_is_truthworthy pref

chrome/browser/ui/gesture_prefs_observer_factory_aura.cc

 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/ui/gesture_prefs_observer_factory_aura.h"
 
 #include <vector>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
@@ skipping 123 matching lines @@
   prefs::kFlingCurveTouchscreenAlpha,
   prefs::kFlingCurveTouchscreenBeta,
   prefs::kFlingCurveTouchscreenGamma,
 };
 
 GesturePrefsObserver::GesturePrefsObserver(PrefService* prefs)
     : prefs_(prefs) {
   // Clear for migration.
   prefs->ClearPref(kTouchScreenFlingAccelerationAdjustment);
 
-  // TODO(mohsen): Remove following code in M32. By then, gesture prefs will
-  // have been cleared for majority of the users: crbug.com/269292.
-  // Do a one-time wipe of all gesture preferences.
-  if (!prefs->GetBoolean(prefs::kGestureConfigIsTrustworthy)) {
-    for (size_t i = 0; i < arraysize(kPrefsToObserve); ++i)
-      prefs->ClearPref(kPrefsToObserve[i]);
-
-    const std::vector<OverscrollPref>& overscroll_prefs = GetOverscrollPrefs();
-    for (size_t i = 0; i < overscroll_prefs.size(); ++i)
-      prefs->ClearPref(overscroll_prefs[i].pref_name);
-
-    for (size_t i = 0; i < arraysize(kFlingTouchpadPrefs); ++i)
-      prefs->ClearPref(kFlingTouchpadPrefs[i]);
-
-    for (size_t i = 0; i < arraysize(kFlingTouchscreenPrefs); ++i)
-      prefs->ClearPref(kFlingTouchscreenPrefs[i]);
-
-    prefs->SetBoolean(prefs::kGestureConfigIsTrustworthy, true);
-  }
+  // Clear temporary pref gesture.config_is_trustworthy, so that in M33, we can
+  // remove it completely: crbug.com/269292.
+  prefs->ClearPref(prefs::kGestureConfigIsTrustworthy);
 
   registrar_.Init(prefs);
   registrar_.RemoveAll();
   base::Closure callback = base::Bind(&GesturePrefsObserver::Update,
                                       base::Unretained(this));
 
   base::Closure notify_callback = base::Bind(&GesturePrefsObserver::Notify,
                                              base::Unretained(this));
 
   for (size_t i = 0; i < arraysize(kPrefsToObserve); ++i)
@@ skipping 320 matching lines @@
   // Use same gesture preferences on incognito windows.
   return chrome::GetBrowserContextRedirectedInIncognito(context);
 }
 
 bool GesturePrefsObserverFactoryAura::ServiceIsNULLWhileTesting() const {
   // Some tests replace the PrefService of the TestingProfile after the
   // GesturePrefsObserver has been created, which makes Shutdown()
   // remove the registrar from a non-existent PrefService.
   return true;
 }