Remove dependency on the DevTools agent for console logs.

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 e10bedbb65ef73ba123e3bbfdb3182991d017d10..01092fd415e41028db509bd3de7522067b7afc1e 100644
--- a/content/common/frame_messages.h
+++ b/content/common/frame_messages.h
@@ -669,6 +669,11 @@ IPC_MESSAGE_ROUTED2(FrameMsg_AddMessageToConsole,
                     content::ConsoleMessageLevel /* level */,
                     std::string /* message */)
 
+// Add a security related message to the console (doesn't go through devtools).
+IPC_MESSAGE_ROUTED2(FrameMsg_AddSecurityMessageToConsole,

[pfeldman, 2016/04/21 21:48:30]

ditto

+                    content::ConsoleMessageLevel /* level */,
+                    std::string /* message */)
+
 // Request for the renderer to execute JavaScript in the frame's context.
 //
 // javascript is the string containing the JavaScript to be executed in the