Final batch adding real histogram values for extension events.

extensions/browser/test_extensions_browser_client.cc

Index: extensions/browser/test_extensions_browser_client.cc
diff --git a/extensions/browser/test_extensions_browser_client.cc b/extensions/browser/test_extensions_browser_client.cc
index 6f2821d3fd367bab9273ff6f18a282ed4e5218dc..979707b107b310978ac394db8bfdcdfaf22676e1 100644
--- a/extensions/browser/test_extensions_browser_client.cc
+++ b/extensions/browser/test_extensions_browser_client.cc
@@ -177,9 +177,9 @@ TestExtensionsBrowserClient::GetComponentExtensionResourceManager() {
 }
 
 void TestExtensionsBrowserClient::BroadcastEventToRenderers(
+    events::HistogramValue histogram_value,
     const std::string& event_name,
-    scoped_ptr<base::ListValue> args) {
-}
+    scoped_ptr<base::ListValue> args) {}
 
 net::NetLog* TestExtensionsBrowserClient::GetNetLog() {
   return NULL;