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

chrome/browser/android/webapk/webapk_update_data_fetcher.h

 // 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_
+#ifndef CHROME_BROWSER_ANDROID_WEBAPK_WEBAPK_UPDATE_DATA_FETCHER_H_
+#define CHROME_BROWSER_ANDROID_WEBAPK_WEBAPK_UPDATE_DATA_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 {
+// WebApkUpdateDataFetcher is the C++ counterpart of
+// org.chromium.chrome.browser's WebApkUpdateDataFetcher in Java. It is created
+// via a JNI (Initialize) call and MUST BE DESTROYED via Destroy().
+class WebApkUpdateDataFetcher : public content::WebContentsObserver {
  public:
-  ManifestUpgradeDetectorFetcher(JNIEnv* env,
-                                 jobject obj,
-                                 const GURL& scope,
-                                 const GURL& web_manifest_url);
+  WebApkUpdateDataFetcher(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;
+  ~WebApkUpdateDataFetcher() 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);
 
@@ skipping 16 matching lines @@
   // 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_;
+  base::WeakPtrFactory<WebApkUpdateDataFetcher> weak_ptr_factory_;
 
-  DISALLOW_COPY_AND_ASSIGN(ManifestUpgradeDetectorFetcher);
+  DISALLOW_COPY_AND_ASSIGN(WebApkUpdateDataFetcher);
 };
 
-#endif  // CHROME_BROWSER_ANDROID_WEBAPK_MANIFEST_UPGRADE_DETECTOR_FETCHER_H_
+#endif  // CHROME_BROWSER_ANDROID_WEBAPK_WEBAPK_UPDATE_DATA_FETCHER_H_