Replicate Content-Security-Policy into remote frame proxies.

third_party/WebKit/Source/web/FrameLoaderClientImpl.cpp

Index: third_party/WebKit/Source/web/FrameLoaderClientImpl.cpp
diff --git a/third_party/WebKit/Source/web/FrameLoaderClientImpl.cpp b/third_party/WebKit/Source/web/FrameLoaderClientImpl.cpp
index ecfe5353f44b0de925d873ef2c2eb37c696d3816..dcbb202f23dcd11d83816b1d069a2a5987b24470 100644
--- a/third_party/WebKit/Source/web/FrameLoaderClientImpl.cpp
+++ b/third_party/WebKit/Source/web/FrameLoaderClientImpl.cpp
@@ -1039,4 +1039,17 @@ LinkResource* FrameLoaderClientImpl::createServiceWorkerLinkResource(HTMLLinkEle
     return ServiceWorkerLinkResource::create(owner);
 }
 
+void FrameLoaderClientImpl::didAddContentSecurityPolicy(
+    const String& headerValue,
+    ContentSecurityPolicyHeaderType type,
+    ContentSecurityPolicyHeaderSource source)
+{
+    if (m_webFrame->client()) {
+        m_webFrame->client()->didAddContentSecurityPolicy(
+            headerValue,
+            static_cast<WebContentSecurityPolicyType>(type),
+            static_cast<WebContentSecurityPolicySource>(source));
+    }
+}
+
 } // namespace blink