Check that dataReductionUpdateDailyLengths is reset.

chrome/test/data/extensions/api_test/preference/data_reduction_proxy/test.js

 // Copyright (c) 2014 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.
 
 // Content settings API test
 // Run with browser_tests --gtest_filter=ExtensionApiTest.DataReductionProxy
 
-var drp = chrome.dataReductionProxy;
+var dataReductionProxy = chrome.dataReductionProxy;
+var privatePreferences = chrome.preferencesPrivate;
 chrome.test.runTests([
   function getDrpPrefs() {
-    drp.spdyProxyEnabled.get({}, chrome.test.callbackPass(
+    dataReductionProxy.spdyProxyEnabled.get({}, chrome.test.callbackPass(
         function(result) {
           chrome.test.assertEq(
               {
                 'value': false,
                 'levelOfControl': 'controllable_by_this_extension'
               },
               result);
     }));
-    drp.dataReductionDailyContentLength.get({}, chrome.test.callbackPass(
-        function(result) {
+    dataReductionProxy.dataReductionDailyContentLength.get({},
+        chrome.test.callbackPass(function(result) {
           chrome.test.assertEq(
               {
                 'value': [],
                 'levelOfControl': 'controllable_by_this_extension'
               },
               result);
     }));
-    drp.dataReductionDailyReceivedLength.get({}, chrome.test.callbackPass(
-        function(result) {
+    dataReductionProxy.dataReductionDailyReceivedLength.get({},
+        chrome.test.callbackPass(function(result) {
           chrome.test.assertEq(
               {
                 'value': [],
                 'levelOfControl': 'controllable_by_this_extension'
               },
               result);
     }));
-    drp.dataReductionUpdateDailyLengths.get({}, chrome.test.callbackPass(
-        function(result) {
+    privatePreferences.dataReductionUpdateDailyLengths.get({},
+        chrome.test.callbackPass(function(result) {
           chrome.test.assertEq(
               {
-                'value': false,
-                'levelOfControl': 'controllable_by_this_extension'
+                'value': false
               },
               result);
     }));
   },
   function updateDailyLengths() {
-    drp.dataReductionDailyContentLength.onChange.addListener(
+    dataReductionProxy.dataReductionDailyContentLength.onChange.addListener(
         confirmDailyContentLength);
-    drp.dataReductionDailyReceivedLength.onChange.addListener(
+    dataReductionProxy.dataReductionDailyReceivedLength.onChange.addListener(
         confirmRecievedLength);
 
     // Trigger calls to confirmDailyContentLength.onChange and
     // dataReductionDailyReceivedLength.onChange listeners.
-    drp.spdyProxyEnabled.set({ 'value': true });
-    drp.dataReductionUpdateDailyLengths.set({'value': true});
+    dataReductionProxy.spdyProxyEnabled.set({ 'value': true });
+    privatePreferences.dataReductionUpdateDailyLengths.set({'value': true});
 
     // Helper methods.
     var expectedDailyLengths = [];
     for (var i = 0; i < 60; i++) {
       expectedDailyLengths[i] = '0';
     }
     function confirmRecievedLength() {
-      drp.dataReductionDailyReceivedLength.get({},
+      dataReductionProxy.dataReductionDailyReceivedLength.get({},
           chrome.test.callbackPass(function(result) {
             chrome.test.assertEq(
                 {
                   'value': expectedDailyLengths ,
                   'levelOfControl': 'controllable_by_this_extension'
                 },
                 result);
       }));
-    }
-    function confirmDailyContentLength() {
-      drp.dataReductionDailyContentLength.get({},
+      privatePreferences.dataReductionUpdateDailyLengths.get({},
         chrome.test.callbackPass(function(result) {
           chrome.test.assertEq(
               {
+                'value': false
+              },
+              result);
+      }));
+    }
+    function confirmDailyContentLength() {
+      dataReductionProxy.dataReductionDailyContentLength.get({},
+        chrome.test.callbackPass(function(result) {
+          chrome.test.assertEq(
+              {
                 'value': expectedDailyLengths ,
                 'levelOfControl': 'controllable_by_this_extension'
               },
               result);
       }));
+      privatePreferences.dataReductionUpdateDailyLengths.get({},
+        chrome.test.callbackPass(function(result) {
+          chrome.test.assertEq(
+              {
+                'value': false
+              },
+              result);
+      }));
     }
   }
 ]);