Small cleanup: use the IsOptimizationHintsEnabled helper function consistently...

Small cleanup: use the IsOptimizationHintsEnabled helper function consistently rather than accessing the kOptimizationHints feature directly.

Change-Id: Ie61c5ba532e71c9524369f5d1bb056e8303ac02f
Reviewed-on: https://chromium-review.googlesource.com/1119229Reviewed-by: Doug Arnett <dougarnett@chromium.org>
Reviewed-by: Nico Weber <thakis@chromium.org>
Commit-Queue: Jeremy Elson <jelson@chromium.org>
Cr-Commit-Position: refs/heads/master@{#571517}

chrome/browser/browser_process_impl.cc

@@ -101,7 +101,7 @@
 #include "components/prefs/json_pref_store.h"
 #include "components/prefs/pref_registry_simple.h"
 #include "components/prefs/pref_service.h"
-#include "components/previews/core/previews_features.h"
+#include "components/previews/core/previews_experiments.h"
 #include "components/rappor/public/rappor_utils.h"
 #include "components/rappor/rappor_service_impl.h"
 #include "components/sessions/core/session_id_generator.h"
@@ -1299,7 +1299,7 @@ void BrowserProcessImpl::CreateOptimizationGuideService() {
   DCHECK(!optimization_guide_service_);
   created_optimization_guide_service_ = true;
 
-  if (!base::FeatureList::IsEnabled(previews::features::kOptimizationHints))
+  if (!previews::params::IsOptimizationHintsEnabled())
     return;
 
   optimization_guide_service_ =

chrome/browser/component_updater/optimization_hints_component_installer.cc

@@ -17,7 +17,7 @@
 #include "components/optimization_guide/optimization_guide_constants.h"
 #include "components/optimization_guide/optimization_guide_service.h"
 #include "components/prefs/pref_service.h"
-#include "components/previews/core/previews_features.h"
+#include "components/previews/core/previews_experiments.h"
 
 using component_updater::ComponentUpdateService;
 
@@ -133,7 +133,7 @@ OptimizationHintsComponentInstallerPolicy::GetMimeTypes() const {
 
 void RegisterOptimizationHintsComponent(ComponentUpdateService* cus,
                                         PrefService* profile_prefs) {
-  if (!base::FeatureList::IsEnabled(previews::features::kOptimizationHints)) {
+  if (!previews::params::IsOptimizationHintsEnabled()) {
     return;
   }
   if (!profile_prefs || !profile_prefs->GetBoolean(prefs::kDataSaverEnabled)) {