Add a SafeSearch preference, policy and implementation.

chrome/browser/extensions/api/web_request/web_request_api_unittest.cc

Index: chrome/browser/extensions/api/web_request/web_request_api_unittest.cc
diff --git a/chrome/browser/extensions/api/web_request/web_request_api_unittest.cc b/chrome/browser/extensions/api/web_request/web_request_api_unittest.cc
index 03be19fe2a188cbf1a948bdff21efe13cae1c3c8..b1c5367fdeab8b008961053b4534a26b1c863f71 100644
--- a/chrome/browser/extensions/api/web_request/web_request_api_unittest.cc
+++ b/chrome/browser/extensions/api/web_request/web_request_api_unittest.cc
@@ -163,7 +163,7 @@ class ExtensionWebRequestTest : public testing::Test {
     network_delegate_.reset(new ChromeNetworkDelegate(
         event_router_.get(), NULL, NULL, NULL, &profile_,
         CookieSettings::Factory::GetForProfile(&profile_), &enable_referrers_,
-        NULL, NULL));
+        NULL, NULL, NULL));
     context_.reset(new TestURLRequestContext(true));
     context_->set_network_delegate(network_delegate_.get());
     context_->Init();
@@ -706,7 +706,7 @@ class ExtensionWebRequestHeaderModificationTest :
     network_delegate_.reset(new ChromeNetworkDelegate(
         event_router_.get(), NULL, NULL, NULL, &profile_,
         CookieSettings::Factory::GetForProfile(&profile_), &enable_referrers_,
-        NULL, NULL));
+        NULL, NULL, NULL));
     context_.reset(new TestURLRequestContext(true));
     host_resolver_.reset(new net::MockHostResolver());
     host_resolver_->rules()->AddSimulatedFailure("doesnotexist");