Upstream: Do not show the add-to-homescreen/install-native-app infobar for WebAPKs

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

Index: chrome/android/java/src/org/chromium/chrome/browser/webapps/WebappDelegateFactory.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/webapps/WebappDelegateFactory.java b/chrome/android/java/src/org/chromium/chrome/browser/webapps/WebappDelegateFactory.java
new file mode 100644
index 0000000000000000000000000000000000000000..22f47a2e73623a6c0950da34d4c7b167838304a2
--- /dev/null
+++ b/chrome/android/java/src/org/chromium/chrome/browser/webapps/WebappDelegateFactory.java
@@ -0,0 +1,112 @@
+// 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.
+
+package org.chromium.chrome.browser.webapps;
+
+import android.content.Intent;
+import android.text.TextUtils;
+
+import org.chromium.base.ContextUtils;
+import org.chromium.base.VisibleForTesting;
+import org.chromium.chrome.browser.ShortcutHelper;
+import org.chromium.chrome.browser.tab.Tab;
+import org.chromium.chrome.browser.tab.TabDelegateFactory;
+import org.chromium.chrome.browser.tab.TabWebContentsDelegateAndroid;
+import org.chromium.chrome.browser.tab.TopControlsVisibilityDelegate;
+import org.chromium.chrome.browser.util.UrlUtilities;
+import org.chromium.components.security_state.ConnectionSecurityLevel;
+
+/**
+ * A {@link TabDelegateFactory} class to be used in all {@link Tab} instances owned by a
+ * {@link FullScreenActivity}.
+ */
+public class WebappDelegateFactory extends FullScreenDelegateFactory {
+    private static class WebappWebContentsDelegateAndroid extends TabWebContentsDelegateAndroid {
+        private final WebappActivity mActivity;
+
+        public WebappWebContentsDelegateAndroid(WebappActivity activity, Tab tab) {
+            super(tab);
+            mActivity = activity;
+        }
+
+        @Override
+        public void activateContents() {
+            String startUrl = mActivity.getWebappInfo().uri().toString();
+
+            // Create an Intent that will be fired toward the WebappLauncherActivity, which in turn
+            // will fire an Intent to launch the correct WebappActivity.  On L+ this could probably
+            // be changed to call AppTask.moveToFront(), but for backwards compatibility we relaunch
+            // it the hard way.
+            Intent intent = new Intent();
+            intent.setAction(WebappLauncherActivity.ACTION_START_WEBAPP);
+            intent.setPackage(mActivity.getPackageName());
+            mActivity.getWebappInfo().setWebappIntentExtras(intent);
+
+            intent.putExtra(
+                    ShortcutHelper.EXTRA_MAC, ShortcutHelper.getEncodedMac(mActivity, startUrl));
+            intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+            ContextUtils.getApplicationContext().startActivity(intent);
+        }
+    }
+
+    @VisibleForTesting
+    static class TopControlsDelegate extends TopControlsVisibilityDelegate {
+        private final WebappActivity mActivity;
+
+        public TopControlsDelegate(WebappActivity activity, Tab tab) {
+            super(tab);
+            mActivity = activity;
+        }
+
+        @Override
+        public boolean isShowingTopControlsEnabled() {
+            if (!super.isShowingTopControlsEnabled()) return false;
+
+            String webappStartUrl = mActivity.getWebappInfo().uri().toString();
+            return shouldShowTopControls(webappStartUrl, mTab.getUrl(), mTab.getSecurityLevel());
+        }
+
+        @Override
+        public boolean isHidingTopControlsEnabled() {
+            return !isShowingTopControlsEnabled();
+        }
+
+        /**
+         * Returns whether the top controls should be shown when a webapp is navigated to
+         * {@link url}.
+         * @param webappStartUrl The webapp's URL when it is opened from the home screen.
+         * @param url The webapp's current URL
+         * @param securityLevel The security level for the webapp's current URL.
+         * @return Whether the top controls should be shown for {@link url}.
+         */
+        public static boolean shouldShowTopControls(
+                String webappStartUrl, String url, int securityLevel) {
+            // Do not show top controls when URL is not ready yet.
+            boolean visible = false;
+            if (TextUtils.isEmpty(url)) return false;
+
+            boolean isSameWebsite =
+                    UrlUtilities.sameDomainOrHost(webappStartUrl, url, true);
+            visible = !isSameWebsite || securityLevel == ConnectionSecurityLevel.SECURITY_ERROR
+                    || securityLevel == ConnectionSecurityLevel.SECURITY_WARNING;
+            return visible;
+        }
+    }
+
+    private final WebappActivity mActivity;
+
+    public WebappDelegateFactory(WebappActivity activity) {
+        mActivity = activity;
+    }
+
+    @Override
+    public TabWebContentsDelegateAndroid createWebContentsDelegate(Tab tab) {
+        return new WebappWebContentsDelegateAndroid(mActivity, tab);
+    }
+
+    @Override
+    public TopControlsVisibilityDelegate createTopControlsVisibilityDelegate(Tab tab) {
+        return new TopControlsDelegate(mActivity, tab);
+    }
+}