[NoStatePrefetch] Do not send responses to renderer in prefetch mode.

content/public/renderer/content_renderer_client.cc

Index: content/public/renderer/content_renderer_client.cc
diff --git a/content/public/renderer/content_renderer_client.cc b/content/public/renderer/content_renderer_client.cc
index 2f859e1beb987b59e93bf3864edf78f4c386ee6c..8a3cb0ba0ea8916bded7407a03d1624702fcbeac 100644
--- a/content/public/renderer/content_renderer_client.cc
+++ b/content/public/renderer/content_renderer_client.cc
@@ -136,6 +136,12 @@ bool ContentRendererClient::WillSendRequest(
   return false;
 }
 
+bool ContentRendererClient::IsPrefetchOnly(
+    RenderFrame* render_frame,
+    const blink::WebURLRequest& request) {
+  return false;
+}
+
 unsigned long long ContentRendererClient::VisitedLinkHash(
     const char* canonical_url, size_t length) {
   return 0LL;