Add a SafeSearch preference, policy and implementation.

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 ff79bcb42760ce046570e893be665489895cb74c..8e53fa850bce2a796bac6cf24bbcffd276cefbf8 100644
--- a/chrome/browser/policy/policy_browsertest.cc
+++ b/chrome/browser/policy/policy_browsertest.cc
@@ -648,6 +648,55 @@ IN_PROC_BROWSER_TEST_F(PolicyTest, DefaultSearchProvider) {
   EXPECT_EQ(GURL(chrome::kAboutBlankURL), web_contents->GetURL());
 }
 
+IN_PROC_BROWSER_TEST_F(PolicyTest, ForceSafeSearch) {
+  // Verifies that requests to Google Search engine with the SafeSearch
+  // enabled set the safe=active&ssui=on parameters at the end of the query.
+  TemplateURLService* service = TemplateURLServiceFactory::GetForProfile(
+      browser()->profile());
+  ui_test_utils::WaitForTemplateURLServiceToLoad(service);
+
+  // First check that nothing happens.
+  chrome::FocusLocationBar(browser());
+  LocationBar* location_bar = browser()->window()->GetLocationBar();
+  ui_test_utils::SendToOmniboxAndSubmit(location_bar, "http://google.com/");
+  OmniboxEditModel* model = location_bar->GetLocationEntry()->model();
+  EXPECT_TRUE(model->CurrentMatch().destination_url.is_valid());
+  content::WebContents* web_contents = chrome::GetActiveWebContents(browser());
+  GURL expected_without("http://google.com/");
+  EXPECT_EQ(expected_without, web_contents->GetURL());
+
+  PrefService* prefs = browser()->profile()->GetPrefs();
+  EXPECT_FALSE(prefs->IsManagedPreference(prefs::kForceSafeSearch));
+  EXPECT_FALSE(prefs->GetBoolean(prefs::kForceSafeSearch));
+
+  // Override the default SafeSearch setting using policies.
+  PolicyMap policies;
+  policies.Set(key::kForceSafeSearch, POLICY_LEVEL_MANDATORY,
+               POLICY_SCOPE_USER, base::Value::CreateBooleanValue(true));
+  provider_.UpdateChromePolicy(policies);
+
+  EXPECT_TRUE(prefs->IsManagedPreference(prefs::kForceSafeSearch));
+  EXPECT_TRUE(prefs->GetBoolean(prefs::kForceSafeSearch));
+
+  content::WindowedNotificationObserver observer(
+      content::NOTIFICATION_LOAD_COMPLETED_MAIN_FRAME,
+      content::NotificationService::AllSources());
+
+  // Verify that searching from google.com works.
+  chrome::FocusLocationBar(browser());
+  location_bar = browser()->window()->GetLocationBar();
+  ui_test_utils::SendToOmniboxAndSubmit(location_bar, "http://google.com/");
+  observer.Wait();
+  model = location_bar->GetLocationEntry()->model();
+  EXPECT_TRUE(model->CurrentMatch().destination_url.is_valid());
+  web_contents = chrome::GetActiveWebContents(browser());
+  std::string expected_url("http://google.com/?");
+  expected_url += std::string(chrome::kSafeSearchSafeParameter) + "&" +
+                  chrome::kSafeSearchSsuiParameter;
+  GURL expected_with_parameters(expected_url);
+  EXPECT_EQ(expected_with_parameters, web_contents->GetURL());
+}
+
 IN_PROC_BROWSER_TEST_F(PolicyTest, ReplaceSearchTerms) {
   CommandLine::ForCurrentProcess()->AppendSwitch(
       switches::kEnableInstantExtendedAPI);