Introduce ManifestUpgradeDetector for WebAPK to detect web manifest changes.

chrome/android/junit/src/org/chromium/chrome/browser/webapps/WebappDataStorageTest.java

Index: chrome/android/junit/src/org/chromium/chrome/browser/webapps/WebappDataStorageTest.java
diff --git a/chrome/android/junit/src/org/chromium/chrome/browser/webapps/WebappDataStorageTest.java b/chrome/android/junit/src/org/chromium/chrome/browser/webapps/WebappDataStorageTest.java
index b4b6564a18356665526b7a973bbf3f694cc92ad9..8f348474ed04eaa5621e093223d8a9f15de19348 100644
--- a/chrome/android/junit/src/org/chromium/chrome/browser/webapps/WebappDataStorageTest.java
+++ b/chrome/android/junit/src/org/chromium/chrome/browser/webapps/WebappDataStorageTest.java
@@ -321,6 +321,93 @@ public class WebappDataStorageTest {
                 mSharedPreferences.getBoolean(WebappDataStorage.KEY_IS_ICON_GENERATED, true));
     }
 
+    @Test
+    @Feature({"WebApk"})
+    public void testIntentVersionOfWebApkUpdate() throws Exception {
+        final String id = "webapk:id";
+        final String url = "url";
+        String webApkPackageName =  "org.webapk.com";
+        int version = 111;
+
+        Intent shortcutIntent = new Intent();
+        shortcutIntent.putExtra(ShortcutHelper.EXTRA_ID, id)
+                .putExtra(ShortcutHelper.EXTRA_URL, url)
+                .putExtra(ShortcutHelper.EXTRA_VERSION, version)
+                .putExtra(ShortcutHelper.EXTRA_WEBAPK_PACKAGE_NAME, webApkPackageName);
+
+        WebappDataStorage storage = WebappDataStorage.open(Robolectric.application, "test");
+        storage.updateFromShortcutIntent(shortcutIntent);
+        BackgroundShadowAsyncTask.runBackgroundTasks();
+        Robolectric.runUiThreadTasks();
+
+        assertEquals(webApkPackageName,
+                mSharedPreferences.getString(WebappDataStorage.KEY_WEBAPK_PACKAGE_NAME, null));
+        assertEquals(version, mSharedPreferences.getInt(WebappDataStorage.KEY_VERSION, -1));
+
+        // Wipe out the data and ensure that it is all gone.
+        mSharedPreferences.edit().remove(WebappDataStorage.KEY_URL)
+                .remove(WebappDataStorage.KEY_VERSION)
+                .remove(WebappDataStorage.KEY_WEBAPK_PACKAGE_NAME)
+                .apply();
+
+        assertEquals(-1, mSharedPreferences.getInt(WebappDataStorage.KEY_VERSION, -1));
+        assertEquals(null, mSharedPreferences.getString(WebappDataStorage.KEY_WEBAPK_PACKAGE_NAME,
+                null));
+
+        // Update again from the intent and ensure that the data is restored.
+        storage.updateFromShortcutIntent(shortcutIntent);
+        BackgroundShadowAsyncTask.runBackgroundTasks();
+        Robolectric.runUiThreadTasks();
+
+        assertEquals(webApkPackageName,
+                mSharedPreferences.getString(WebappDataStorage.KEY_WEBAPK_PACKAGE_NAME, null));
+        assertEquals(version, mSharedPreferences.getInt(WebappDataStorage.KEY_VERSION, -1));
+
+    }
+
+    @Test
+    @Feature({"WebApk"})
+    public void testEmptyIntentVersionOfWebApkUpdateFallbackToVersionInvalid() throws Exception {
+        final String id = "webapk:id";
+        final String url = "url";
+        String webApkPackageName =  "org.webapk.com";
+
+        Intent shortcutIntent = new Intent();
+        shortcutIntent.putExtra(ShortcutHelper.EXTRA_ID, id)
+                .putExtra(ShortcutHelper.EXTRA_URL, url)
+                .putExtra(ShortcutHelper.EXTRA_WEBAPK_PACKAGE_NAME, webApkPackageName);
+
+        WebappDataStorage storage = WebappDataStorage.open(Robolectric.application, "test");
+        storage.updateFromShortcutIntent(shortcutIntent);
+        BackgroundShadowAsyncTask.runBackgroundTasks();
+        Robolectric.runUiThreadTasks();
+
+        assertEquals(webApkPackageName,
+                mSharedPreferences.getString(WebappDataStorage.KEY_WEBAPK_PACKAGE_NAME, null));
+        assertEquals(WebappDataStorage.VERSION_INVALID,
+                mSharedPreferences.getInt(WebappDataStorage.KEY_VERSION, -1));
+
+        // Wipe out the data and ensure that it is all gone.
+        mSharedPreferences.edit().remove(WebappDataStorage.KEY_URL)
+                .remove(WebappDataStorage.KEY_VERSION)
+                .remove(WebappDataStorage.KEY_WEBAPK_PACKAGE_NAME)
+                .apply();
+
+        assertEquals(-1, mSharedPreferences.getInt(WebappDataStorage.KEY_VERSION, -1));
+        assertEquals(null, mSharedPreferences.getString(WebappDataStorage.KEY_WEBAPK_PACKAGE_NAME,
+                null));
+
+        // Update again from the intent and ensure that the data is restored.
+        storage.updateFromShortcutIntent(shortcutIntent);
+        BackgroundShadowAsyncTask.runBackgroundTasks();
+        Robolectric.runUiThreadTasks();
+
+        assertEquals(webApkPackageName,
+                mSharedPreferences.getString(WebappDataStorage.KEY_WEBAPK_PACKAGE_NAME, null));
+        assertEquals(WebappDataStorage.VERSION_INVALID,
+                mSharedPreferences.getInt(WebappDataStorage.KEY_VERSION, -1));
+    }
+
     // TODO(lalitm) - There seems to be a bug in Robolectric where a Bitmap
     // produced from a byte stream is hardcoded to be a 100x100 bitmap with
     // ARGB_8888 pixel format. Because of this, we need to work around the