Move mixed content settings histograms into browser

content/renderer/render_frame_impl.h

Index: content/renderer/render_frame_impl.h
diff --git a/content/renderer/render_frame_impl.h b/content/renderer/render_frame_impl.h
index 833cfb2889d7f2dc204051c3703e1da29dbd4bea..9c332503610f433910daf6ebb9c78b87f25ad8ba 100644
--- a/content/renderer/render_frame_impl.h
+++ b/content/renderer/render_frame_impl.h
@@ -435,6 +435,10 @@ class CONTENT_EXPORT RenderFrameImpl
   void didChangeOpener(blink::WebFrame* frame) override;
   void frameDetached(blink::WebFrame* frame, DetachType type) override;
   void frameFocused() override;
+  void triedDisplayingInsecureContent(const blink::WebSecurityOrigin&,
+                                      const blink::WebURL&) override;
+  void triedRunningInsecureContent(const blink::WebSecurityOrigin&,
+                                   const blink::WebURL&) override;
   void willClose(blink::WebFrame* frame) override;
   void didChangeName(blink::WebLocalFrame* frame,
                      const blink::WebString& name) override;