Fix the handling of user gestures for external protocol handler dialogs.

chrome/browser/external_protocol/external_protocol_observer.h

Index: chrome/browser/external_protocol/external_protocol_observer.h
diff --git a/chrome/browser/external_protocol/external_protocol_observer.h b/chrome/browser/external_protocol/external_protocol_observer.h
deleted file mode 100644
index c4b7b26d231dbd936a5a9605ac546f0dadf1e3b6..0000000000000000000000000000000000000000
--- a/chrome/browser/external_protocol/external_protocol_observer.h
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright (c) 2011 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_BROWSER_EXTERNAL_PROTOCOL_EXTERNAL_PROTOCOL_OBSERVER_H_
-#define CHROME_BROWSER_EXTERNAL_PROTOCOL_EXTERNAL_PROTOCOL_OBSERVER_H_
-
-#include "content/public/browser/web_contents_observer.h"
-#include "content/public/browser/web_contents_user_data.h"
-
-// ExternalProtocolObserver is responsible for handling messages from
-// WebContents relating to external protocols.
-class ExternalProtocolObserver
-    : public content::WebContentsObserver,
-      public content::WebContentsUserData<ExternalProtocolObserver> {
- public:
-  virtual ~ExternalProtocolObserver();
-
-  // content::WebContentsObserver overrides.
-  virtual void DidGetUserGesture() OVERRIDE;
-
- private:
-  explicit ExternalProtocolObserver(content::WebContents* web_contents);
-  friend class content::WebContentsUserData<ExternalProtocolObserver>;
-
-  DISALLOW_COPY_AND_ASSIGN(ExternalProtocolObserver);
-};
-
-#endif  // CHROME_BROWSER_EXTERNAL_PROTOCOL_EXTERNAL_PROTOCOL_OBSERVER_H_