Plumb document's strict mixed content checking for RemoteFrames

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 70c881825f8883a6db53263dc9f27def90943d4f..f28a9fd9acd2976c16b15e2a0f7b134cf6e9e5ec 100644
--- a/content/browser/frame_host/render_frame_host_impl.cc
+++ b/content/browser/frame_host/render_frame_host_impl.cc
@@ -508,6 +508,8 @@ bool RenderFrameHostImpl::OnMessageReceived(const IPC::Message &msg) {
                         OnDidAccessInitialDocument)
     IPC_MESSAGE_HANDLER(FrameHostMsg_DidChangeOpener, OnDidChangeOpener)
     IPC_MESSAGE_HANDLER(FrameHostMsg_DidChangeName, OnDidChangeName)
+    IPC_MESSAGE_HANDLER(FrameHostMsg_DidEnforceStrictMixedContentChecking,
+                        OnDidEnforceStrictMixedContentChecking)
     IPC_MESSAGE_HANDLER(FrameHostMsg_DidAssignPageId, OnDidAssignPageId)
     IPC_MESSAGE_HANDLER(FrameHostMsg_DidChangeSandboxFlags,
                         OnDidChangeSandboxFlags)
@@ -1371,6 +1373,10 @@ void RenderFrameHostImpl::OnDidChangeName(const std::string& name) {
   delegate_->DidChangeName(this, name);
 }
 
+void RenderFrameHostImpl::OnDidEnforceStrictMixedContentChecking() {
+  frame_tree_node()->SetShouldEnforceStrictMixedContentChecking(true);
+}
+
 void RenderFrameHostImpl::OnDidAssignPageId(int32 page_id) {
   // Update the RVH's current page ID so that future IPCs from the renderer
   // correspond to the new page.