Plumb document's strict mixed content checking for RemoteFrames

third_party/WebKit/public/web/WebFrameClient.h

Index: third_party/WebKit/public/web/WebFrameClient.h
diff --git a/third_party/WebKit/public/web/WebFrameClient.h b/third_party/WebKit/public/web/WebFrameClient.h
index e603a0585eef7c2fccdfda913169d33766fbe8a6..39f4937f46593936eca6a25923dbd37d505b4166 100644
--- a/third_party/WebKit/public/web/WebFrameClient.h
+++ b/third_party/WebKit/public/web/WebFrameClient.h
@@ -177,6 +177,9 @@ public:
     // This frame's name has changed.
     virtual void didChangeName(WebLocalFrame*, const WebString&) { }
 
+    // This frame has been set to enforce strict mixed content checking.
+    virtual void didEnforceStrictMixedContentChecking() {}
+
     // The sandbox flags have changed for a child frame of this frame.
     virtual void didChangeSandboxFlags(WebFrame* childFrame, WebSandboxFlags flags) { }