Plumb document's strict mixed content checking for RemoteFrames

content/common/frame_replication_state.h

Index: content/common/frame_replication_state.h
diff --git a/content/common/frame_replication_state.h b/content/common/frame_replication_state.h
index 37612c873f7f2ae5aa5d6a0b4dce27e43066228c..0bb4d7cd014e7d3ff262e0fd0e9b369f142e58c6 100644
--- a/content/common/frame_replication_state.h
+++ b/content/common/frame_replication_state.h
@@ -21,7 +21,8 @@ struct CONTENT_EXPORT FrameReplicationState {
   FrameReplicationState();
   FrameReplicationState(blink::WebTreeScopeType scope,
                         const std::string& name,
-                        blink::WebSandboxFlags sandbox_flags);
+                        blink::WebSandboxFlags sandbox_flags,
+                        bool should_enforce_strict_mixed_content_checking);
   ~FrameReplicationState();
 
   // Current origin of the frame. This field is updated whenever a frame
@@ -69,6 +70,11 @@ struct CONTENT_EXPORT FrameReplicationState {
   // operator.
   blink::WebTreeScopeType scope;
 
+  // True if a frame's current document should strictly block all mixed
+  // content. Updates are immediately sent to all frame proxies when in
+  // --site-per-process mode.
+  bool should_enforce_strict_mixed_content_checking;
+
   // TODO(alexmos): Eventually, this structure can also hold other state that
   // needs to be replicated, such as frame sizing info.
 };