[Android Site Settings] Disable fetching important sites when not needed

chrome/android/java/src/org/chromium/chrome/browser/preferences/website/ManageSpaceActivity.java

 // Copyright 2016 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.
 
 package org.chromium.chrome.browser.preferences.website;
 
 import android.annotation.SuppressLint;
 import android.annotation.TargetApi;
 import android.app.ActivityManager;
 import android.content.Context;
@@ skipping 285 matching lines @@
                        StoredDataClearedCallback {
         // We keep track of the number of sites waiting to be cleared, and when it reaches 0 we can
         // set our testing variable.
         private int mNumSitesClearing;
 
         /**
          * We fetch all the websites and clear all the non-important data. This happens
          * asynchronously, and at the end we update the UI with the new storage numbers.
          */
         public void clearData() {
-            WebsitePermissionsFetcher fetcher = new WebsitePermissionsFetcher(this);
+            WebsitePermissionsFetcher fetcher = new WebsitePermissionsFetcher(this, true);
             fetcher.fetchPreferencesForCategory(
                     SiteSettingsCategory.fromString(SiteSettingsCategory.CATEGORY_USE_STORAGE));
         }
 
         @Override
         public void onStoredDataCleared() {
             mNumSitesClearing--;
             if (mNumSitesClearing <= 0) clearUnimportantDataDone();
         }
 
@@ skipping 25 matching lines @@
             ActivityInfo activityInfo = getPackageManager().getActivityInfo(getComponentName(), 0);
             if (activityInfo.exported) {
                 throw new IllegalStateException("ManageSpaceActivity must not be exported.");
             }
         } catch (NameNotFoundException ex) {
             // Something terribly wrong has happened.
             throw new RuntimeException(ex);
         }
     }
 }