Naively implement WorkerFetchContext::ShouldBlockFetchByMixedContentCheck()

third_party/WebKit/Source/core/loader/WorkerFetchContext.cpp

Index: third_party/WebKit/Source/core/loader/WorkerFetchContext.cpp
diff --git a/third_party/WebKit/Source/core/loader/WorkerFetchContext.cpp b/third_party/WebKit/Source/core/loader/WorkerFetchContext.cpp
index cbda72d44c5e427ebc473ee644d909fd8fde02d2..9f21b6665a3165a2db2e9d5eefa2935a9790a0b4 100644
--- a/third_party/WebKit/Source/core/loader/WorkerFetchContext.cpp
+++ b/third_party/WebKit/Source/core/loader/WorkerFetchContext.cpp
@@ -158,8 +158,10 @@ bool WorkerFetchContext::ShouldBlockFetchByMixedContentCheck(
     const ResourceRequest& resource_request,
     const KURL& url,
     SecurityViolationReportingPolicy reporting_policy) const {
-  // TODO(horo): Implement this.
-  return false;
+  // TODO(horo): We need more detailed check which is implemented in
+  // MixedContentChecker::ShouldBlockFetch().
+  return MixedContentChecker::IsMixedContent(
+      worker_global_scope_->GetSecurityOrigin(), url);
 }
 
 std::unique_ptr<WebURLLoader> WorkerFetchContext::CreateURLLoader() {