Update WebAPK if homescreen icon changed.

chrome/browser/android/webapk/manifest_upgrade_detector_fetcher.h

Index: chrome/browser/android/webapk/manifest_upgrade_detector_fetcher.h
diff --git a/chrome/browser/android/webapk/manifest_upgrade_detector_fetcher.h b/chrome/browser/android/webapk/manifest_upgrade_detector_fetcher.h
index d1f66c2ee586ed3b104315a92d8cf0d06dc5c42e..7d15aebb733dfc49b920b797b28e0d0ded01fe98 100644
--- a/chrome/browser/android/webapk/manifest_upgrade_detector_fetcher.h
+++ b/chrome/browser/android/webapk/manifest_upgrade_detector_fetcher.h
@@ -17,6 +17,8 @@ class WebContents;
 }
 
 class GURL;
+class SkBitmap;
+struct InstallableData;
 struct ShortcutInfo;
 
 // ManifestUpgradeDetectorFetcher is the C++ counterpart of
@@ -53,11 +55,10 @@ class ManifestUpgradeDetectorFetcher : public content::WebContentsObserver {
   void DidFinishLoad(content::RenderFrameHost* render_frame_host,
                      const GURL& validated_url) override;
 
-  // Called when the Manifest has been parsed, or if no Manifest was found.
-  void OnDidGetManifest(const GURL& manifest_url,
-                        const content::Manifest& manifest);
+  // Called once the installable data has been fetched.
+  void OnDidGetInstallableData(const InstallableData& installable_data);
 
-  void OnDataAvailable(const ShortcutInfo& info);
+  void OnDataAvailable(const ShortcutInfo& info, const SkBitmap& icon);
 
   // Points to the Java object.
   base::android::ScopedJavaGlobalRef<jobject> java_ref_;