Add calls to the server to request WebAPK updates.

chrome/android/java/src/org/chromium/chrome/browser/webapps/WebappDataStorage.java

Index: chrome/android/java/src/org/chromium/chrome/browser/webapps/WebappDataStorage.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/webapps/WebappDataStorage.java b/chrome/android/java/src/org/chromium/chrome/browser/webapps/WebappDataStorage.java
index 29cb18fcc650fafd93f2b9bed62fcd7ea80a5f94..de67d8e8d37ccb101e33a97c376f8dfadad43b20 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/webapps/WebappDataStorage.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/webapps/WebappDataStorage.java
@@ -46,6 +46,20 @@ public class WebappDataStorage {
     static final String KEY_VERSION = "version";
     static final String KEY_WEBAPK_PACKAGE_NAME = "webapk_package_name";
 
+    // The last time that Chrome checks Web Manifest updates for a WebAPK.
+    public static final String KEY_LAST_CHECK_WEB_MANIFEST_UPDATE_TIME =
+            "last_check_web_manifest_update_time";
+
+    // The last time that Chrome sends a request to WebAPK Minting Server to download and install
+    // new ShellAPK version.
+    public static final String KEY_LAST_REQUEST_NEW_VERSION_SHELL_APK_TIME =
+            "last_request_new_version_shell_apk_time";
+
+    // Whether the last request that Chrome sends to WebAPK Minting Server to download and
+    // install new ShellAPK version succeeds.
+    public static final String KEY_DOES_LAST_REQUEST_NEW_VERSION_SHELL_APK_SUCCEED =
+            "does_last_request_new_version_shell_apk_succeed";
+
     // Unset/invalid constants for last used times and URLs. 0 is used as the null last
     // used time as WebappRegistry assumes that this is always a valid timestamp.
     static final long LAST_USED_UNSET = 0;
@@ -181,6 +195,9 @@ public class WebappDataStorage {
         editor.putLong(KEY_LAST_USED, LAST_USED_UNSET);
         editor.remove(KEY_URL);
         editor.remove(KEY_SCOPE);
+        editor.remove(KEY_LAST_CHECK_WEB_MANIFEST_UPDATE_TIME);
+        editor.remove(KEY_LAST_REQUEST_NEW_VERSION_SHELL_APK_TIME);
+        editor.remove(KEY_DOES_LAST_REQUEST_NEW_VERSION_SHELL_APK_SUCCEED);
         editor.apply();
     }
 
@@ -401,6 +418,53 @@ public class WebappDataStorage {
     }
 
     /**
+     *  Updates the time of the last check of whether the WebAPK's Web Manifest is updated.
+     */
+    void updateLastCheckForWebManifestUpdateTime() {
+        mPreferences.edit().putLong(KEY_LAST_CHECK_WEB_MANIFEST_UPDATE_TIME,
+                sClock.currentTimeMillis()).apply();
+    }
+
+    /**
+     * Returns the time of the last check of whether the WebAPK's Web Manifest is updated.
+     */
+    long getLastCheckForWebManifestUpdateTime() {
+        return mPreferences.getLong(KEY_LAST_CHECK_WEB_MANIFEST_UPDATE_TIME, LAST_USED_INVALID);
+    }
+
+    /**
+     * Updates the time of the last request to WebAPK Minting Server to download and install new
+     * ShellAPK version.
+     */
+    void updateLastRequestForNewShellApkVersionTime() {
+        mPreferences.edit().putLong(KEY_LAST_REQUEST_NEW_VERSION_SHELL_APK_TIME,
+                sClock.currentTimeMillis()).apply();
+    }
+
+    /**
+     * Returns the time of the last request to WebAPK Minting Server to download and install new
+     * ShellAPK version.
+     */
+    long getLastRequestForNewShellApkVersionTime() {
+        return mPreferences.getLong(KEY_LAST_REQUEST_NEW_VERSION_SHELL_APK_TIME, LAST_USED_INVALID);
+    }
+
+    /**
+     * Updates the result of whether the last request to WebAPK Minting Server to download and
+     * install new ShellAPK version succeeds.
+     */
+    void updateDoesLastRequestForNewShellApkVersionSucceed(boolean sucess) {
+        mPreferences.edit().putBoolean(KEY_DOES_LAST_REQUEST_NEW_VERSION_SHELL_APK_SUCCEED,
+                sucess).apply();
+    }
+
+    /**
+     * Returns whether the last request to WebAPK Minting Server succeeds.
+     */
+    boolean getDoesLastRequestForNewShellApkVersionSucceed() {
+        return mPreferences.getBoolean(KEY_DOES_LAST_REQUEST_NEW_VERSION_SHELL_APK_SUCCEED, false);
+    }
+    /**
      * Returns true if this web app has been launched from home screen recently (within
      * WEBAPP_LAST_OPEN_MAX_TIME milliseconds).
      */