Add a New Tab page location group policy

chrome/browser/policy/policy_browsertest.cc

Index: chrome/browser/policy/policy_browsertest.cc
diff --git a/chrome/browser/policy/policy_browsertest.cc b/chrome/browser/policy/policy_browsertest.cc
index ad7e48a26feb825b685b690869c25a3ec362de75..e82b921ffeb84078a03dae5f2cfe32f2b246a1e8 100644
--- a/chrome/browser/policy/policy_browsertest.cc
+++ b/chrome/browser/policy/policy_browsertest.cc
@@ -1199,9 +1199,8 @@ IN_PROC_BROWSER_TEST_F(PolicyTest, ForceGoogleSafeSearch) {
         safe_search == 0  // ForceGoogleSafeSearch
             ? nullptr
             : base::MakeUnique<base::FundamentalValue>(safe_search == 1),
-        nullptr,          // ForceYouTubeSafetyMode
-        nullptr           // ForceYouTubeRestrict
-    );
+        nullptr,   // ForceYouTubeSafetyMode
+        nullptr);  // ForceYouTubeRestrict
 
     // Verify that the safe search pref behaves the way we expect.
     PrefService* prefs = browser()->profile()->GetPrefs();
@@ -2093,6 +2092,19 @@ IN_PROC_BROWSER_TEST_F(PolicyTest, HomepageLocation) {
   EXPECT_EQ(GURL(chrome::kChromeUINewTabURL), contents->GetURL());
 }
 
+IN_PROC_BROWSER_TEST_F(PolicyTest, NewTabPageLocation) {

[pastarmovj, 2017/01/19 14:56:21]

IIRC this is tested by the policy_test_cases.json test below. It verifies that
the mentioned pref is changed when the policy is set.

[MAD, 2017/01/19 16:13:30]

Ho! Good point... Thanks!

+  // Verifies that the New Tab page can be configured with policies.
+  PolicyMap policies;
+  policies.Set(key::kNewTabPageLocation, POLICY_LEVEL_MANDATORY,
+               POLICY_SCOPE_USER, POLICY_SOURCE_ENTERPRISE_DEFAULT,
+               base::MakeUnique<base::StringValue>(chrome::kChromeUICreditsURL),
+               nullptr);
+  UpdateProviderPolicy(policies);
+  PrefService* prefs = browser()->profile()->GetPrefs();
+  EXPECT_EQ(chrome::kChromeUICreditsURL,
+            prefs->GetString(prefs::kNewTabPageLocationOverride));
+}
+
 #if defined(OS_MACOSX) && defined(ADDRESS_SANITIZER)
 // Flaky on ASAN on Mac. See https://crbug.com/674497.
 #define MAYBE_IncognitoEnabled DISABLED_IncognitoEnabled