Pass implementation object to supplemental classes by reference

Source/core/workers/WorkerGlobalScopeProxyProvider.cpp

Index: Source/core/workers/WorkerGlobalScopeProxyProvider.cpp
diff --git a/Source/core/workers/WorkerGlobalScopeProxyProvider.cpp b/Source/core/workers/WorkerGlobalScopeProxyProvider.cpp
index 3a539dfcfe142e5c452c3e95001915394332a7c5..05bd6f180ac629417077744550ef90b0ea8c0296 100644
--- a/Source/core/workers/WorkerGlobalScopeProxyProvider.cpp
+++ b/Source/core/workers/WorkerGlobalScopeProxyProvider.cpp
@@ -33,7 +33,7 @@
 
 namespace WebCore {
 
-WorkerGlobalScopeProxyProvider* WorkerGlobalScopeProxyProvider::from(Page* page)
+WorkerGlobalScopeProxyProvider* WorkerGlobalScopeProxyProvider::from(Page& page)
 {
     return static_cast<WorkerGlobalScopeProxyProvider*>(Supplement<Page>::from(page, supplementName()));
 }
@@ -43,7 +43,7 @@ const char* WorkerGlobalScopeProxyProvider::supplementName()
     return "WorkerGlobalScopeProxyProvider";
 }
 
-void provideWorkerGlobalScopeProxyProviderTo(Page* page, PassOwnPtr<WorkerGlobalScopeProxyProvider> provider)
+void provideWorkerGlobalScopeProxyProviderTo(Page& page, PassOwnPtr<WorkerGlobalScopeProxyProvider> provider)
 {
     Supplement<Page>::provideTo(page, WorkerGlobalScopeProxyProvider::supplementName(), provider);
 }