Update WebAPKs even if the WebAPK start URL has no Web Manifest part 2/3

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
deleted file mode 100644
index 5d3849ec69787a1ce1718546b510ed5cee415e6c..0000000000000000000000000000000000000000
--- a/chrome/browser/android/webapk/manifest_upgrade_detector_fetcher.h
+++ /dev/null
@@ -1,95 +0,0 @@
-// Copyright 2016 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_ANDROID_WEBAPK_MANIFEST_UPGRADE_DETECTOR_FETCHER_H_
-#define CHROME_BROWSER_ANDROID_WEBAPK_MANIFEST_UPGRADE_DETECTOR_FETCHER_H_
-
-#include "base/android/jni_android.h"
-#include "base/android/jni_weak_ref.h"
-#include "base/macros.h"
-#include "base/memory/weak_ptr.h"
-#include "chrome/browser/android/shortcut_info.h"
-#include "content/public/browser/web_contents_observer.h"
-#include "third_party/skia/include/core/SkBitmap.h"
-
-namespace content {
-struct Manifest;
-class WebContents;
-}
-
-class GURL;
-struct InstallableData;
-class WebApkIconHasher;
-
-// ManifestUpgradeDetectorFetcher is the C++ counterpart of
-// org.chromium.chrome.browser's ManifestUpgradeDetectorFetcher in Java. It is
-// created via a JNI (Initialize) call and MUST BE DESTROYED via Destroy().
-class ManifestUpgradeDetectorFetcher : public content::WebContentsObserver {
- public:
-  ManifestUpgradeDetectorFetcher(JNIEnv* env,
-                                 jobject obj,
-                                 const GURL& scope,
-                                 const GURL& web_manifest_url);
-
-  // Replaces the WebContents that is being observed.
-  void ReplaceWebContents(
-      JNIEnv* env,
-      const base::android::JavaParamRef<jobject>& obj,
-      const base::android::JavaParamRef<jobject>& java_web_contents);
-
-  // Called by the Java counterpart to destroy its native half.
-  void Destroy(JNIEnv* env, const base::android::JavaParamRef<jobject>& obj);
-
-  // Called by the Java counterpart to start checking web manifest changes.
-  void Start(JNIEnv* env,
-             const base::android::JavaParamRef<jobject>& obj,
-             const base::android::JavaParamRef<jobject>& java_web_contents);
-
-  // Registers JNI hooks.
-  static bool Register(JNIEnv* env);
-
- private:
-  ~ManifestUpgradeDetectorFetcher() override;
-
-  // content::WebContentsObserver:
-  void DidStopLoading() override;
-
-  // Fetches the installable data.
-  void FetchInstallableData();
-
-  // Called once the installable data has been fetched.
-  void OnDidGetInstallableData(const InstallableData& installable_data);
-
-  // Called with the computed Murmur2 hash for the app icon.
-  void OnGotIconMurmur2Hash(const std::string& best_icon_murmur2_hash);
-
-  void OnDataAvailable(const ShortcutInfo& info,
-                       const std::string& best_icon_murmur2_hash,
-                       const SkBitmap& best_icon);
-
-  // Points to the Java object.
-  base::android::ScopedJavaGlobalRef<jobject> java_ref_;
-
-  // The detector will only fetch the URL within the scope of the WebAPK.
-  const GURL scope_;
-
-  // The WebAPK's Web Manifest URL that the detector is looking for.
-  const GURL web_manifest_url_;
-
-  // The URL for which the installable data is being fetched / was last fetched.
-  GURL last_fetched_url_;
-
-  // Downloads app icon and computes Murmur2 hash.
-  std::unique_ptr<WebApkIconHasher> icon_hasher_;
-
-  // Downloaded data for |web_manifest_url_|.
-  ShortcutInfo info_;
-  SkBitmap best_icon_;
-
-  base::WeakPtrFactory<ManifestUpgradeDetectorFetcher> weak_ptr_factory_;
-
-  DISALLOW_COPY_AND_ASSIGN(ManifestUpgradeDetectorFetcher);
-};
-
-#endif  // CHROME_BROWSER_ANDROID_WEBAPK_MANIFEST_UPGRADE_DETECTOR_FETCHER_H_