Allow only responsive websites to install as a web app on mobile.

chrome/browser/banners/app_banner_data_fetcher.h

Index: chrome/browser/banners/app_banner_data_fetcher.h
diff --git a/chrome/browser/banners/app_banner_data_fetcher.h b/chrome/browser/banners/app_banner_data_fetcher.h
index fcab9129fac10eb3982b06782f49202b960a4c9e..39bc75da334eab6335b1236731b8feda69f6408a 100644
--- a/chrome/browser/banners/app_banner_data_fetcher.h
+++ b/chrome/browser/banners/app_banner_data_fetcher.h
@@ -62,7 +62,7 @@ class AppBannerDataFetcher
 
   // Begins creating a banner for the URL being displayed by the Delegate's
   // WebContents.
-  void Start(const GURL& validated_url);
+  virtual void Start(const GURL& validated_url);
 
   // Stops the pipeline when any asynchronous calls return.
   void Cancel();
@@ -79,6 +79,10 @@ class AppBannerDataFetcher
   // Returns whether or not the pipeline has been stopped.
   bool is_active() { return is_active_; }
 
+  // Returns whether or not the requesting site is responsive. Used only on
+  // mobile.
+  bool is_responsive() { return is_responsive_; }
+
   // Returns the URL that kicked off the banner data retrieval.
   const GURL& validated_url() { return validated_url_; }
 
@@ -122,6 +126,14 @@ class AppBannerDataFetcher
   // metric being recorded.
   void RecordDidShowBanner(const std::string& event_name);
 
+  // Returns whether the fetcher is active and web contents have not been
+  // closed.
+  bool CheckFetcherIsStillAlive(content::WebContents* web_contents);
+
+  bool is_active_;
+  bool is_responsive_;
+  GURL validated_url_;
+
  private:
   // Callbacks for data retrieval.
   void OnDidGetManifest(const content::Manifest& manifest);
@@ -138,10 +150,6 @@ class AppBannerDataFetcher
   // Returns whether the banner should be shown.
   bool CheckIfShouldShowBanner();
 
-  // Returns whether the fetcher is active and web contents have not been
-  // closed.
-  bool CheckFetcherIsStillAlive(content::WebContents* web_contents);
-
   // Returns whether the given Manifest is following the requirements to show
   // a web app banner.
   static bool IsManifestValidForWebApp(const content::Manifest& manifest,
@@ -150,12 +158,10 @@ class AppBannerDataFetcher
   const int ideal_icon_size_;
   const base::WeakPtr<Delegate> weak_delegate_;
   ObserverList<Observer> observer_list_;
-  bool is_active_;
   int event_request_id_;
   scoped_ptr<chrome::BitmapFetcher> bitmap_fetcher_;
   scoped_ptr<SkBitmap> app_icon_;
 
-  GURL validated_url_;
   base::string16 app_title_;
   content::Manifest web_app_data_;