Revert of Allow direct and indirect navigation values to be varied via field trial.

chrome/browser/android/banners/app_banner_manager_android.cc

 // Copyright 2015 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/android/banners/app_banner_manager_android.h"
 
 #include "base/android/jni_android.h"
 #include "base/android/jni_string.h"
 #include "base/command_line.h"
 #include "base/metrics/field_trial.h"
@@ skipping 163 matching lines @@
 }
 
 void SetTimeDeltaForTesting(JNIEnv* env, jclass clazz, jint days) {
   AppBannerDataFetcher::SetTimeDeltaForTesting(days);
 }
 
 void DisableSecureSchemeCheckForTesting(JNIEnv* env, jclass clazz) {
   AppBannerManager::DisableSecureSchemeCheckForTesting();
 }
 
-void SetEngagementWeights(JNIEnv* env,
-                          jclass clazz,
-                          jdouble direct_engagement,
-                          jdouble indirect_engagement) {
-  AppBannerManager::SetEngagementWeights(direct_engagement,
-                                         indirect_engagement);
+void ForceEngagementWeightsForTesting(JNIEnv* env,
+                                      jclass clazz,
+                                      jdouble direct_engagement,
+                                      jdouble indirect_engagement) {
+  AppBannerManager::ForceEngagementWeightsForTesting(direct_engagement,
+                                                     indirect_engagement);
 }
 
 jboolean IsEnabled(JNIEnv* env, jclass clazz) {
   return base::FieldTrialList::FindFullName("AppBanners") == "Enabled";
 }
 
 }  // namespace banners