Add missing return statement after ReceivedBadMessage call.

content/browser/bad_message.h

Index: content/browser/bad_message.h
diff --git a/content/browser/bad_message.h b/content/browser/bad_message.h
index 4af4fe2187b14489b367b0ff614abce4318ec5e1..52c7a5e978450a4663e69b4e85bff99486d6c1f9 100644
--- a/content/browser/bad_message.h
+++ b/content/browser/bad_message.h
@@ -5,6 +5,8 @@
 #ifndef CONTENT_BROWSER_BAD_MESSAGE_H_
 #define CONTENT_BROWSER_BAD_MESSAGE_H_
 
+#include "content/common/content_export.h"
+
 namespace content {
 class BrowserMessageFilter;
 class RenderProcessHost;
@@ -208,7 +210,8 @@ enum BadMessageReason {
 void ReceivedBadMessage(RenderProcessHost* host, BadMessageReason reason);
 
 // Equivalent to the above, but callable from any thread.
-void ReceivedBadMessage(int render_process_id, BadMessageReason reason);
+CONTENT_EXPORT void ReceivedBadMessage(int render_process_id,
+                                       BadMessageReason reason);
 
 // Called when a browser message filter receives a bad IPC message from a
 // renderer or other child process. Logs the event, records a histogram metric