Send origin updates to frame proxies when a frame navigates to new origin.

content/renderer/render_frame_proxy.cc

Index: content/renderer/render_frame_proxy.cc
diff --git a/content/renderer/render_frame_proxy.cc b/content/renderer/render_frame_proxy.cc
index f433733ce5dbf8eea5cc7772ab591b6845492ee1..558c3911a83077f87349b80b7a123b8dc9357a1d 100644
--- a/content/renderer/render_frame_proxy.cc
+++ b/content/renderer/render_frame_proxy.cc
@@ -211,6 +211,7 @@ bool RenderFrameProxy::OnMessageReceived(const IPC::Message& msg) {
     IPC_MESSAGE_HANDLER(FrameMsg_DidUpdateSandboxFlags, OnDidUpdateSandboxFlags)
     IPC_MESSAGE_HANDLER(FrameMsg_DispatchLoad, OnDispatchLoad)
     IPC_MESSAGE_HANDLER(FrameMsg_DidUpdateName, OnDidUpdateName)
+    IPC_MESSAGE_HANDLER(FrameMsg_DidUpdateOrigin, OnDidUpdateOrigin)
     IPC_MESSAGE_UNHANDLED(handled = false)
   IPC_END_MESSAGE_MAP()
 
@@ -303,6 +304,11 @@ void RenderFrameProxy::OnDidUpdateName(const std::string& name) {
   web_frame_->setReplicatedName(blink::WebString::fromUTF8(name));
 }
 
+void RenderFrameProxy::OnDidUpdateOrigin(const url::Origin& origin) {
+  web_frame_->setReplicatedOrigin(blink::WebSecurityOrigin::createFromString(
+      blink::WebString::fromUTF8(origin.string())));
+}
+
 void RenderFrameProxy::frameDetached() {
   if (web_frame_->parent()) {
     web_frame_->parent()->removeChild(web_frame_);