Implement UMA log throttling for cellular connections

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 5ee161ff3574aba5e662155278c7d46f254612c8..0b4d32b4949e99c3865e3f446903449ae5177ae9 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
@@ -193,7 +193,8 @@ class ExtensionWebRequestTest : public testing::Test {
         &enable_referrers_, NULL, NULL, NULL,
         profile_.GetTestingPrefService());
     network_delegate_.reset(
-        new ChromeNetworkDelegate(event_router_.get(), &enable_referrers_));
+        new ChromeNetworkDelegate(event_router_.get(), &enable_referrers_,
+                                  metrics::UpdateUsagePrefCallbackType()));
     network_delegate_->set_profile(&profile_);
     network_delegate_->set_cookie_settings(
         CookieSettingsFactory::GetForProfile(&profile_).get());
@@ -871,7 +872,8 @@ class ExtensionWebRequestHeaderModificationTest
         &enable_referrers_, NULL, NULL, NULL,
         profile_.GetTestingPrefService());
     network_delegate_.reset(
-        new ChromeNetworkDelegate(event_router_.get(), &enable_referrers_));
+        new ChromeNetworkDelegate(event_router_.get(), &enable_referrers_,
+                                  metrics::UpdateUsagePrefCallbackType()));
     network_delegate_->set_profile(&profile_);
     network_delegate_->set_cookie_settings(
         CookieSettingsFactory::GetForProfile(&profile_).get());