Suppress native app install banner if the site has a manifest.

chrome/browser/android/meta_tag_observer.h

Index: chrome/browser/android/meta_tag_observer.h
diff --git a/chrome/browser/android/meta_tag_observer.h b/chrome/browser/android/meta_tag_observer.h
deleted file mode 100644
index ec415de6ad26cb99c1212d909a31acdd30c052e1..0000000000000000000000000000000000000000
--- a/chrome/browser/android/meta_tag_observer.h
+++ /dev/null
@@ -1,44 +0,0 @@
-// Copyright 2014 The Chromium Authors. All rights reserved.

[gone, 2015/01/28 18:44:13]

This class was intended to be used by other classes that searched for meta tags,
but that got punted for other fires.  Can always revive it when that time comes.

-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef CHROME_BROWSER_ANDROID_META_TAG_OBSERVER_H_
-#define CHROME_BROWSER_ANDROID_META_TAG_OBSERVER_H_
-
-#include "content/public/browser/web_contents_observer.h"
-
-class GURL;
-
-// Retrieves the content of a particular meta tag when a page has fully loaded.
-// Subclasses must implement |HandleMetaTagContent|, which gets called after
-// the DOM has been scanned for the tag.
-class MetaTagObserver : public content::WebContentsObserver {
- public:
-  explicit MetaTagObserver(const std::string& meta_tag);
-  virtual ~MetaTagObserver();
-
-  // content::WebContentsObserver overrides:
-  virtual void DidFinishLoad(content::RenderFrameHost* render_frame_host,
-                             const GURL& validated_url) override;
-
-  virtual bool OnMessageReceived(const IPC::Message& message) override;
-
- protected:
-  // Called when the meta tag's content has been retrieved successfully.
-  virtual void HandleMetaTagContent(const std::string& tag_content,
-                                    const GURL& expected_url) = 0;
-
- private:
-  // Called when the renderer has returned information about the meta tag.
-  void OnDidRetrieveMetaTagContent(bool success,
-                                   const std::string& tag_name,
-                                   const std::string& tag_content,
-                                   const GURL& expected_url);
-
-  const std::string meta_tag_;
-  GURL validated_url_;
-
-  DISALLOW_COPY_AND_ASSIGN(MetaTagObserver);
-};
-
-#endif  // CHROME_BROWSER_ANDROID_META_TAG_OBSERVER_H_