[Payments] Implement openWindow for service worker based payment handler

chrome/android/java/src/org/chromium/chrome/browser/tabmodel/document/TabDelegate.java

Index: chrome/android/java/src/org/chromium/chrome/browser/tabmodel/document/TabDelegate.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/tabmodel/document/TabDelegate.java b/chrome/android/java/src/org/chromium/chrome/browser/tabmodel/document/TabDelegate.java
index c011fcd41d7eb8ffad494f1c07aa9e2ed96b0fb2..aaa37197858ffde179289c7c0af4be521f56880f 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/tabmodel/document/TabDelegate.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/tabmodel/document/TabDelegate.java
@@ -10,9 +10,13 @@ import android.content.Intent;
 import android.net.Uri;
 import android.os.Bundle;
 import android.provider.Browser;
+import android.support.customtabs.CustomTabsIntent;
 
 import org.chromium.base.ApiCompatibilityUtils;
+import org.chromium.base.ApplicationStatus;
 import org.chromium.base.ContextUtils;
+import org.chromium.chrome.R;
+import org.chromium.chrome.browser.ChromeActivity;
 import org.chromium.chrome.browser.IntentHandler;
 import org.chromium.chrome.browser.ServiceTabLauncher;
 import org.chromium.chrome.browser.TabState;
@@ -94,6 +98,44 @@ public class TabDelegate extends TabCreator {
         activity.startActivity(intent);
     }
 
+    /**
+     * Creates a popup custom tab to open the url. The new tab is displayed over the tab showing
+     * redirectUrl.
+     *
+     * @param requestId   Id of the request for launching this tab.
+     * @param redirectUrl The url of the background tab showing.
+     * @param url         The url to open in the new tab.
+     */
+    public boolean createPopupCustomTab(int requestId, String redirectUrl, String url) {
+        // The activity that contains the background tab must be active, otherwise do not open the
+        // new tab.
+        Activity lastTrackedActivity = ApplicationStatus.getLastTrackedFocusedActivity();
+        if (!(lastTrackedActivity instanceof ChromeActivity)) return false;
+        WebContents webcontents =
+                ((ChromeActivity) lastTrackedActivity).getActivityTab().getWebContents();
+        if (webcontents == null) return false;
+
+        // Do not open new tab if the current active tab is not showing the redirect url.
+        if (!redirectUrl.equals(webcontents.getLastCommittedUrl())) return false;
+
+        CustomTabsIntent.Builder builder = new CustomTabsIntent.Builder();
+        builder.setShowTitle(true);
+        builder.setStartAnimations(lastTrackedActivity, R.anim.slide_in_up, 0);
+        builder.setExitAnimations(lastTrackedActivity, 0, R.anim.slide_out_down);
+        CustomTabsIntent customTabsIntent = builder.build();
+        customTabsIntent.intent.setData(Uri.parse(url));
+        customTabsIntent.intent.setPackage(ContextUtils.getApplicationContext().getPackageName());
+        customTabsIntent.intent.putExtra(ServiceTabLauncher.LAUNCH_REQUEST_ID_EXTRA, requestId);
+        customTabsIntent.intent.putExtra(IntentHandler.EXTRA_OPEN_NEW_INCOGNITO_TAB, mIsIncognito);
+        customTabsIntent.intent.putExtra(Browser.EXTRA_APPLICATION_ID,
+                ContextUtils.getApplicationContext().getPackageName());
+
+        lastTrackedActivity.startActivity(
+                customTabsIntent.intent, customTabsIntent.startAnimationBundle);
+
+        return true;
+    }
+
     @Override
     public Tab launchUrl(String url, TabLaunchType type) {
         return createNewTab(new LoadUrlParams(url), type, null);