Add render frame observer for CopylessPaste

third_party/WebKit/Source/modules/document_metadata/CopylessPasteExtractor.cpp

Index: third_party/WebKit/Source/modules/document_metadata/CopylessPasteExtractor.cpp
diff --git a/third_party/WebKit/Source/modules/document_metadata/CopylessPasteExtractor.cpp b/third_party/WebKit/Source/modules/document_metadata/CopylessPasteExtractor.cpp
index 6c3d28c0bdca950a58155c1dc2f00a1453193d71..6e410f71becb34b87c123e177b0fb38d5f147812 100644
--- a/third_party/WebKit/Source/modules/document_metadata/CopylessPasteExtractor.cpp
+++ b/third_party/WebKit/Source/modules/document_metadata/CopylessPasteExtractor.cpp
@@ -11,6 +11,9 @@
 #include "core/html/HTMLElement.h"
 #include "platform/Histogram.h"
 #include "platform/instrumentation/tracing/TraceEvent.h"
+#include "public/platform/InterfaceProvider.h"
+#include "public/platform/Platform.h"
+#include "public/platform/modules/document_metadata/copyless_paste.mojom-blink.h"
 #include "wtf/text/StringBuilder.h"
 
 namespace blink {
@@ -35,9 +38,19 @@ String extractMetadata(Element& root) {
   return result.toString();
 }
 
+void sendToIcing(Document& document, String extraction) {
+  mojom::blink::CopylessPastePtr servicePtr;
+  Platform::current()->interfaceProvider()->getInterface(
+      mojo::MakeRequest(&servicePtr));
+  DCHECK(servicePtr);
+  if (!servicePtr.is_bound())
+    return;
+  servicePtr->ReportEntityJsonLd(document.url().getString(), extraction);
+}
+
 }  // namespace
 
-String CopylessPasteExtractor::extract(Document& document) {
+String CopylessPasteExtractor::metadata(Document& document) {
   TRACE_EVENT0("blink", "CopylessPasteExtractor::extract");
 
   if (!document.frame() || !document.frame()->isMainFrame())
@@ -59,7 +72,15 @@ String CopylessPasteExtractor::extract(Document& document) {
   DEFINE_STATIC_LOCAL(CustomCountHistogram, extractionHistogram,
                       ("CopylessPaste.ExtractionUs", 1, 1000000, 50));
   extractionHistogram.count(static_cast<int>(1e6 * elapsedTime));
+
   return result;
 }
 
+void CopylessPasteExtractor::extract(Document& document) {
+  String result = metadata(document);
+  if (result != "[]") {
+    sendToIcing(document, result);
+  }
+}
+
 }  // namespace blink