Plumb document's strict mixed content checking for RemoteFrames

content/common/frame_messages.h

Index: content/common/frame_messages.h
diff --git a/content/common/frame_messages.h b/content/common/frame_messages.h
index a2766fd2f8b50d5f0cd0b10c3260f7348a53feaf..8ba721528991ff5a18d42dc402222533ff99078c 100644
--- a/content/common/frame_messages.h
+++ b/content/common/frame_messages.h
@@ -651,6 +651,12 @@ IPC_MESSAGE_ROUTED1(FrameMsg_DidUpdateSandboxFlags, blink::WebSandboxFlags)
 // changed in another process.
 IPC_MESSAGE_ROUTED1(FrameMsg_DidUpdateName, std::string /* name */)
 
+// Update a proxy's replicated enforcement of strict mixed content
+// checking.  Used when the frame's mixed content setting is changed in
+// another process.
+IPC_MESSAGE_ROUTED1(FrameMsg_DidUpdateShouldEnforceStrictMixedContentChecking,
+                    bool /* should enforce */)
+
 // Update a proxy's replicated origin.  Used when the frame is navigated to a
 // new origin.
 IPC_MESSAGE_ROUTED1(FrameMsg_DidUpdateOrigin, url::Origin /* origin */)
@@ -800,6 +806,9 @@ IPC_MESSAGE_ROUTED1(FrameHostMsg_UpdateState, content::PageState /* state */)
 // Sent when the frame changes its window.name.
 IPC_MESSAGE_ROUTED1(FrameHostMsg_DidChangeName, std::string /* name */)
 
+// Sent when the frame starts enforcing strict mixed content checking.
+IPC_MESSAGE_ROUTED0(FrameHostMsg_DidEnforceStrictMixedContentChecking)
+
 // Sent when the renderer changed the progress of a load.
 IPC_MESSAGE_ROUTED1(FrameHostMsg_DidChangeLoadProgress,
                     double /* load_progress */)