Remove dependency on the DevTools agent for console logs.

content/common/frame_messages.h

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // IPC messages for interacting with frames.
 // Multiply-included message file, hence no include guard.
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 651 matching lines @@
 
 // Request for the renderer to insert CSS into the frame.
 IPC_MESSAGE_ROUTED1(FrameMsg_CSSInsertRequest,
                     std::string  /* css */)
 
 // Add message to the devtools console.
 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
 // target frame's context.
 //
 // If the third parameter is true the result is sent back to the browser using
 // the message FrameHostMsg_JavaScriptExecuteResponse.
 // FrameHostMsg_JavaScriptExecuteResponse is passed the ID parameter so that the
 // host can uniquely identify the request.
 IPC_MESSAGE_ROUTED3(FrameMsg_JavaScriptExecuteRequest,
@@ skipping 759 matching lines @@
 IPC_MESSAGE_ROUTED3(FrameHostMsg_FindMatchRects_Reply,
                     int /* version */,
                     std::vector<gfx::RectF> /* rects */,
                     gfx::RectF /* active_rect */)
 #endif
 
 // Adding a new message? Stick to the sort order above: first platform
 // independent FrameMsg, then ifdefs for platform specific FrameMsg, then
 // platform independent FrameHostMsg, then ifdefs for platform specific
 // FrameHostMsg.