[Extensions] Kill off ExtensionMsg_AddMessageToConsole

extensions/browser/app_window/app_web_contents_helper.h

Index: extensions/browser/app_window/app_web_contents_helper.h
diff --git a/extensions/browser/app_window/app_web_contents_helper.h b/extensions/browser/app_window/app_web_contents_helper.h
index ea4f13e55f5d93d31c7b418b1a66aeda62c808d7..8e45eba594809b52c4965d66465b788a7401949d 100644
--- a/extensions/browser/app_window/app_web_contents_helper.h
+++ b/extensions/browser/app_window/app_web_contents_helper.h
@@ -5,7 +5,6 @@
 #ifndef EXTENSIONS_BROWSER_APP_WINDOW_APP_WEB_CONTENTS_HELPER_H_
 #define EXTENSIONS_BROWSER_APP_WINDOW_APP_WEB_CONTENTS_HELPER_H_
 
-#include "content/public/common/console_message_level.h"
 #include "content/public/common/media_stream_request.h"
 
 namespace blink {
@@ -56,10 +55,6 @@ class AppWebContentsHelper {
  private:
   const Extension* GetExtension() const;
 
-  // Helper method to add a message to the renderer's DevTools console.
-  void AddMessageToDevToolsConsole(content::ConsoleMessageLevel level,
-                                   const std::string& message) const;
-
   // The browser context with which this window is associated.
   // AppWindowWebContentsDelegate does not own this object.
   content::BrowserContext* browser_context_;