Replicate Content-Security-Policy into remote frame proxies.

content/browser/frame_host/render_frame_host_impl.cc

Index: content/browser/frame_host/render_frame_host_impl.cc
diff --git a/content/browser/frame_host/render_frame_host_impl.cc b/content/browser/frame_host/render_frame_host_impl.cc
index de78df1b008a679665336147ce250c5ad9bf3a98..1cf7dc376cbebad9d69f557cc8bdfab924b2e03f 100644
--- a/content/browser/frame_host/render_frame_host_impl.cc
+++ b/content/browser/frame_host/render_frame_host_impl.cc
@@ -519,6 +519,8 @@ bool RenderFrameHostImpl::OnMessageReceived(const IPC::Message &msg) {
                         OnDidAccessInitialDocument)
     IPC_MESSAGE_HANDLER(FrameHostMsg_DidChangeOpener, OnDidChangeOpener)
     IPC_MESSAGE_HANDLER(FrameHostMsg_DidChangeName, OnDidChangeName)
+    IPC_MESSAGE_HANDLER(FrameHostMsg_DidAddContentSecurityPolicy,
+                        OnDidAddContentSecurityPolicy)
     IPC_MESSAGE_HANDLER(FrameHostMsg_EnforceStrictMixedContentChecking,
                         OnEnforceStrictMixedContentChecking)
     IPC_MESSAGE_HANDLER(FrameHostMsg_UpdateToUniqueOrigin,
@@ -1505,6 +1507,11 @@ void RenderFrameHostImpl::OnDidChangeName(const std::string& name,
   delegate_->DidChangeName(this, name);
 }
 
+void RenderFrameHostImpl::OnDidAddContentSecurityPolicy(
+    const ContentSecurityPolicyHeader& header) {
+  frame_tree_node()->AddContentSecurityPolicy(header);
+}
+
 void RenderFrameHostImpl::OnEnforceStrictMixedContentChecking() {
   frame_tree_node()->SetEnforceStrictMixedContentChecking(true);
 }