Move mixed content settings histograms into browser

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 831 matching lines @@
 
 // Indicates the renderer process is gone.  This actually is sent by the
 // browser process to itself, but keeps the interface cleaner.
 IPC_MESSAGE_ROUTED2(FrameHostMsg_RenderProcessGone,
                     int, /* this really is base::TerminationStatus */
                     int /* exit_code */)
 
 // Sent by the renderer when the frame becomes focused.
 IPC_MESSAGE_ROUTED0(FrameHostMsg_FrameFocused)
 
+// Sent by the renderer when the frame tries to display mixed content
+// within another frame.
+IPC_MESSAGE_ROUTED2(FrameHostMsg_TriedDisplayingInsecureContent, GURL, GURL)

[alexmos, 2016/01/09 01:39:02]

nit: document what each parameter is.

+
+// Sent by the renderer when the frame tries to run mixed content within
+// another frame.
+IPC_MESSAGE_ROUTED2(FrameHostMsg_TriedRunningInsecureContent, GURL, GURL)
+
 // Sent when the renderer starts a provisional load for a frame.
 IPC_MESSAGE_ROUTED2(FrameHostMsg_DidStartProvisionalLoad,
                     GURL /* url */,
                     base::TimeTicks /* navigation_start */)
 
 // Sent when the renderer fails a provisional load with an error.
 IPC_MESSAGE_ROUTED1(FrameHostMsg_DidFailProvisionalLoadWithError,
                     FrameHostMsg_DidFailProvisionalLoadWithError_Params)
 
 // Notifies the browser that a frame in the view has changed. This message
@@ skipping 502 matching lines @@
 IPC_MESSAGE_ROUTED1(FrameHostMsg_ShowPopup,
                     FrameHostMsg_ShowPopup_Params)
 IPC_MESSAGE_ROUTED0(FrameHostMsg_HidePopup)
 
 #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.