Add UMA metric to track the time elapsed since a WebAPK was last launched

chrome/android/java/src/org/chromium/chrome/browser/ServiceTabLauncher.java

 // Copyright 2015 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.
 
 package org.chromium.chrome.browser;
 
 import android.app.Activity;
 import android.content.Intent;
 import android.net.Uri;
 import android.os.AsyncTask;
@@ skipping 86 matching lines @@
         // Otherwise, open the URL in a tab.
         final WebappDataStorage storage =
                 WebappRegistry.getInstance().getWebappDataStorageForUrl(url);
 
         // Open a new tab if:
         // - We did not find a WebappDataStorage corresponding to this URL.
         // OR
         // - The WebappDataStorage hasn't been opened recently enough.
         // OR
         // - The WebappDataStorage corresponds to a WebAPK (and WebAPKs are disabled).
-        if (storage == null || !storage.wasLaunchedRecently()
+        if (storage == null || !storage.wasUsedRecently()
                 || storage.getWebApkPackageName() != null) {
             LoadUrlParams loadUrlParams = new LoadUrlParams(url, PageTransition.LINK);
             loadUrlParams.setPostData(postData);
             loadUrlParams.setVerbatimHeaders(extraHeaders);
             loadUrlParams.setReferrer(new Referrer(referrerUrl, referrerPolicy));
 
             AsyncTabCreationParams asyncParams = new AsyncTabCreationParams(loadUrlParams,
                     requestId);
             tabDelegate.createNewTab(asyncParams, TabLaunchType.FROM_CHROME_UI,
                     Tab.INVALID_TAB_ID);
@@ skipping 63 matching lines @@
      * @param webContents The WebContents instance associated with this request.
      */
     public static void onWebContentsForRequestAvailable(
             int requestId, @Nullable WebContents webContents) {
         nativeOnWebContentsForRequestAvailable(requestId, webContents);
     }
 
     private static native void nativeOnWebContentsForRequestAvailable(
             int requestId, WebContents webContents);
 }