Rewrite extensions console to not leak function templates.

extensions/renderer/console.h

Index: extensions/renderer/console.h
diff --git a/extensions/renderer/console.h b/extensions/renderer/console.h
index 79d338e773aa9122b8e457c12842c7d93fab5c76..21eb56c11366fcb8ab65c5991c04861851d60fc4 100644
--- a/extensions/renderer/console.h
+++ b/extensions/renderer/console.h
@@ -21,18 +21,13 @@ namespace console {
 
 // Adds |message| to the console of |render_frame|. If |render_frame| is null,
 // LOG()s the message instead.
-void Debug(content::RenderFrame* render_frame, const std::string& message);
-void Log(content::RenderFrame* render_frame, const std::string& message);
-void Warn(content::RenderFrame* render_frame, const std::string& message);
-void Error(content::RenderFrame* render_frame, const std::string& message);
-
-// Logs an Error then crashes the current process.
-void Fatal(content::RenderFrame* render_frame, const std::string& message);
-
 void AddMessage(content::RenderFrame* render_frame,
                 content::ConsoleMessageLevel level,
                 const std::string& message);
 
+// Logs an Error then crashes the current process.
+void Fatal(content::RenderFrame* render_frame, const std::string& message);
+
 // Returns a new v8::Object with each standard log method (Debug/Log/Warn/Error)
 // bound to respective debug/log/warn/error methods. This is a direct drop-in
 // replacement for the standard devtools console.* methods usually accessible