[Presentation API] Adds UseCounters for origin types.

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

Index: third_party/WebKit/Source/modules/presentation/PresentationReceiver.cpp
diff --git a/third_party/WebKit/Source/modules/presentation/PresentationReceiver.cpp b/third_party/WebKit/Source/modules/presentation/PresentationReceiver.cpp
index d7097b9a0f18dc66eef472f7e884c97ed3cae1eb..bbefd948fc6eee8837c51d4f2f38aa304c359274 100644
--- a/third_party/WebKit/Source/modules/presentation/PresentationReceiver.cpp
+++ b/third_party/WebKit/Source/modules/presentation/PresentationReceiver.cpp
@@ -10,6 +10,7 @@
 #include "core/dom/Document.h"
 #include "core/dom/ExceptionCode.h"
 #include "core/frame/LocalFrame.h"
+#include "core/frame/UseCounter.h"
 #include "modules/presentation/PresentationConnection.h"
 #include "modules/presentation/PresentationConnectionList.h"
 #include "public/platform/modules/presentation/WebPresentationClient.h"
@@ -19,6 +20,7 @@ namespace blink {
 PresentationReceiver::PresentationReceiver(LocalFrame* frame,
                                            WebPresentationClient* client)
     : ContextClient(frame) {
+  recordOriginTypeAccess(frame->document());
   m_connectionList = new PresentationConnectionList(frame->document());
 
   if (client)
@@ -65,6 +67,15 @@ void PresentationReceiver::registerConnection(
   m_connectionList->addConnection(connection);
 }
 
+void PresentationReceiver::recordOriginTypeAccess(Document* document) const {
+  DCHECK(document);
+  if (document->isSecureContext()) {
+    UseCounter::count(document, UseCounter::PresentationReceiverSecureOrigin);
+  } else {
+    UseCounter::count(document, UseCounter::PresentationReceiverInsecureOrigin);
+  }
+}
+
 DEFINE_TRACE(PresentationReceiver) {
   visitor->trace(m_connectionList);
   visitor->trace(m_connectionListProperty);