Mark ChromeViewHostMsg_DetailedConsoleMessageAdded as extensions-only.

chrome/renderer/extensions/chrome_extensions_render_frame_observer.h

+// Copyright 2014 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.
+
+#ifndef CHROME_RENDERER_EXTENSIONS_CHROME_EXTENSIONS_RENDER_FRAME_OBSERVER_H_
+#define CHROME_RENDERER_EXTENSIONS_CHROME_EXTENSIONS_RENDER_FRAME_OBSERVER_H_
+
+#include "base/basictypes.h"
+#include "content/public/renderer/render_frame_observer.h"
+
+// This class holds the extensions specific parts of RenderFrame, and has the
+// same lifetime.
+class ChromeExtensionsRenderFrameObserver
+    : public content::RenderFrameObserver {
+ public:
+  explicit ChromeExtensionsRenderFrameObserver(
+      content::RenderFrame* render_frame);
+  virtual ~ChromeExtensionsRenderFrameObserver();
+
+ private:
+  // RenderFrameObserver implementation.
+  virtual void DetailedConsoleMessageAdded(const base::string16& message,
+                                           const base::string16& source,
+                                           const base::string16& stack_trace,
+                                           int32 line_number,
+                                           int32 severity_level) OVERRIDE;
+
+  DISALLOW_COPY_AND_ASSIGN(ChromeExtensionsRenderFrameObserver);
+};
+
+#endif  // CHROME_RENDERER_EXTENSIONS_CHROME_EXTENSIONS_RENDER_FRAME_OBSERVER_H_
+