Upstream: Add additional checks before creating a WebAPK after clicking "Add to Homescreen"

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 214017ede45d586fd632a276c5c4134c668cf120..f9ad536db2b64877e1b65c4330b2a3180df617d5 100644
--- a/chrome/browser/banners/app_banner_data_fetcher.h
+++ b/chrome/browser/banners/app_banner_data_fetcher.h
@@ -12,6 +12,7 @@
 #include "base/memory/weak_ptr.h"
 #include "base/observer_list.h"
 #include "base/time/time.h"
+#include "chrome/browser/banners/app_banner_debug_log.h"
 #include "chrome/common/web_application_info.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/web_contents.h"
@@ -130,6 +131,11 @@ class AppBannerDataFetcher : public base::RefCountedThreadSafe<
   void OnRequestShowAppBanner(content::RenderFrameHost* render_frame_host,
                               int request_id);
 
+  // Returns whether the given Manifest meets the requirements to show a web app
+  // banner. If not, sets |code| to the reason why.
+  virtual bool CheckManifest(const content::Manifest& manifest,
+                             OutputDeveloperMessageCode* code);
+
   content::WebContents* GetWebContents();
   virtual std::string GetAppIdentifier();
   const GURL& manifest_url() { return manifest_url_; }
@@ -179,12 +185,6 @@ class AppBannerDataFetcher : public base::RefCountedThreadSafe<
   // 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,
-                                       content::WebContents* web_contents,
-                                       bool is_debug_mode);
-
   const base::WeakPtr<Delegate> weak_delegate_;
   const int ideal_icon_size_in_dp_;
   const int minimum_icon_size_in_dp_;