Replace DOMWindowProperty in modules/presentation/ with ContextClient

third_party/WebKit/Source/modules/presentation/Presentation.cpp

Index: third_party/WebKit/Source/modules/presentation/Presentation.cpp
diff --git a/third_party/WebKit/Source/modules/presentation/Presentation.cpp b/third_party/WebKit/Source/modules/presentation/Presentation.cpp
index 8a3e16adae0692710e19bc76d58210d09b634497..df41796ccf42372b770f8f5e4a271752aa911fe0 100644
--- a/third_party/WebKit/Source/modules/presentation/Presentation.cpp
+++ b/third_party/WebKit/Source/modules/presentation/Presentation.cpp
@@ -13,7 +13,7 @@
 
 namespace blink {
 
-Presentation::Presentation(LocalFrame* frame) : DOMWindowProperty(frame) {}
+Presentation::Presentation(LocalFrame* frame) : ContextClient(frame) {}
 
 // static
 Presentation* Presentation::create(LocalFrame* frame) {
@@ -29,7 +29,7 @@ Presentation* Presentation::create(LocalFrame* frame) {
 DEFINE_TRACE(Presentation) {
   visitor->trace(m_defaultRequest);
   visitor->trace(m_receiver);
-  DOMWindowProperty::trace(visitor);
+  ContextClient::trace(visitor);
 }
 
 PresentationRequest* Presentation::defaultRequest() const {