Add deprecation message for AppCache in insecure contexts

third_party/WebKit/Source/core/loader/appcache/ApplicationCache.cpp

Index: third_party/WebKit/Source/core/loader/appcache/ApplicationCache.cpp
diff --git a/third_party/WebKit/Source/core/loader/appcache/ApplicationCache.cpp b/third_party/WebKit/Source/core/loader/appcache/ApplicationCache.cpp
index f76fbe11fe0e5f4a6428024c668a451f4d86ad59..84db691bc78c415a25ddc1a76e746eb246fcda7a 100644
--- a/third_party/WebKit/Source/core/loader/appcache/ApplicationCache.cpp
+++ b/third_party/WebKit/Source/core/loader/appcache/ApplicationCache.cpp
@@ -29,7 +29,10 @@
 #include "core/dom/Document.h"
 #include "core/dom/ExceptionCode.h"
 #include "core/events/EventListener.h"
+#include "core/frame/Deprecation.h"
 #include "core/frame/LocalFrame.h"
+#include "core/frame/OriginsUsingFeatures.h"
+#include "core/frame/UseCounter.h"
 #include "core/loader/DocumentLoader.h"
 #include "core/loader/FrameLoader.h"
 
@@ -65,6 +68,7 @@ ApplicationCacheHost* ApplicationCache::applicationCacheHost() const
 
 unsigned short ApplicationCache::status() const
 {
+    recordAPIUseType();
     ApplicationCacheHost* cacheHost = applicationCacheHost();
     if (!cacheHost)
         return ApplicationCacheHost::UNCACHED;
@@ -73,6 +77,7 @@ unsigned short ApplicationCache::status() const
 
 void ApplicationCache::update(ExceptionState& exceptionState)
 {
+    recordAPIUseType();
     ApplicationCacheHost* cacheHost = applicationCacheHost();
     if (!cacheHost || !cacheHost->update())
         exceptionState.throwDOMException(InvalidStateError, "there is no application cache to update.");
@@ -80,6 +85,7 @@ void ApplicationCache::update(ExceptionState& exceptionState)
 
 void ApplicationCache::swapCache(ExceptionState& exceptionState)
 {
+    recordAPIUseType();
     ApplicationCacheHost* cacheHost = applicationCacheHost();
     if (!cacheHost || !cacheHost->swapCache())
         exceptionState.throwDOMException(InvalidStateError, "there is no newer application cache to swap to.");
@@ -128,4 +134,24 @@ const AtomicString& ApplicationCache::toEventType(ApplicationCacheHost::EventID
     return EventTypeNames::error;
 }
 
+void ApplicationCache::recordAPIUseType() const
+{
+    if (!m_frame)
+        return;
+
+    Document* document = m_frame->document();
+
+    if (!document)
+        return;
+
+    if (document->isSecureContext()) {
+        UseCounter::count(document, UseCounter::ApplicationCacheAPISecureOrigin);
+        UseCounter::countCrossOriginIframe(*document, UseCounter::ApplicationCacheAPISecureOrigin);
+    } else {
+        Deprecation::countDeprecation(document, UseCounter::ApplicationCacheAPIInsecureOrigin);
+        UseCounter::countCrossOriginIframe(*document, UseCounter::ApplicationCacheAPIInsecureOrigin);
+        OriginsUsingFeatures::countAnyWorld(*document, OriginsUsingFeatures::Feature::ApplicationCacheAPIInsecureOrigin);
+    }
+}
+
 } // namespace blink