Add a feature to display a persistence toggle for permission prompts on Android.

chrome/android/java/src/org/chromium/chrome/browser/infobar/PermissionInfoBar.java

Index: chrome/android/java/src/org/chromium/chrome/browser/infobar/PermissionInfoBar.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/infobar/ConfirmInfoBar.java b/chrome/android/java/src/org/chromium/chrome/browser/infobar/PermissionInfoBar.java
similarity index 79%
copy from chrome/android/java/src/org/chromium/chrome/browser/infobar/ConfirmInfoBar.java
copy to chrome/android/java/src/org/chromium/chrome/browser/infobar/PermissionInfoBar.java
index 6947d3d16ec538b59e2f11004dfabc222e8f6a8c..d30622102408675b8f23976888d2c10186f4cbad 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/infobar/ConfirmInfoBar.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/infobar/PermissionInfoBar.java
@@ -1,4 +1,4 @@
-// Copyright 2013 The Chromium Authors. All rights reserved.
+// 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.
 
@@ -11,6 +11,7 @@ import android.content.pm.PackageManager;
 import android.graphics.Bitmap;
 import android.os.Process;
 import android.support.v7.app.AlertDialog;
+import android.support.v7.widget.SwitchCompat;
 import android.util.SparseArray;
 import android.view.View;
 import android.widget.TextView;
@@ -24,19 +25,13 @@ import org.chromium.ui.base.WindowAndroid;
 import org.chromium.ui.base.WindowAndroid.PermissionCallback;
 
 /**
- * An infobar that presents the user with several buttons.
+ * An infobar used for prompting the user to grant a web API permission.
  *
- * TODO(newt): merge this into InfoBar.java.
  */
-public class ConfirmInfoBar extends InfoBar {
-    /** Text shown on the primary button, e.g. "OK". */
-    private final String mPrimaryButtonText;
+public class PermissionInfoBar extends ConfirmInfoBar {
 
-    /** Text shown on the secondary button, e.g. "Cancel".*/
-    private final String mSecondaryButtonText;
-
-    /** Text shown on the link, e.g. "Learn more". */
-    private final String mLinkText;
+    /** Whether or not to show a toggle for opting out of persisting the decision. */
+    private boolean mShowPersistenceToggle;
 
     private WindowAndroid mWindowAndroid;
 
@@ -47,12 +42,24 @@ public class ConfirmInfoBar extends InfoBar {
      */
     private SparseArray<String> mContentSettingsToPermissionsMap;
 
-    protected ConfirmInfoBar(int iconDrawableId, Bitmap iconBitmap, String message,
+    protected PermissionInfoBar(int iconDrawableId, Bitmap iconBitmap, String message,
             String linkText, String primaryButtonText, String secondaryButtonText) {
-        super(iconDrawableId, iconBitmap, message);
-        mPrimaryButtonText = primaryButtonText;
-        mSecondaryButtonText = secondaryButtonText;
-        mLinkText = linkText;
+        super(iconDrawableId, iconBitmap, message, linkText, primaryButtonText,
+                secondaryButtonText);
+        mShowPersistenceToggle = false;
+    }
+
+    @Override
+    public void createContent(InfoBarLayout layout) {
+        super.createContent(layout);
+
+        if (mShowPersistenceToggle) {
+            InfoBarControlLayout controlLayout = layout.addControlLayout();
+            String description =
+                    layout.getContext().getString(R.string.permission_infobar_persist_text);
+            controlLayout.addSwitch(
+                    0, 0, description, R.id.permission_infobar_persist_toggle, true);
+        }
     }
 
     /**
@@ -72,24 +79,14 @@ public class ConfirmInfoBar extends InfoBar {
         mContentSettingsToPermissionsMap = generatePermissionsMapping(contentSettings);
     }
 
-    @Override
-    public void createContent(InfoBarLayout layout) {
-        setButtons(layout, mPrimaryButtonText, mSecondaryButtonText);
-        if (mLinkText != null) layout.setMessageLinkText(mLinkText);
-    }
-
     /**
-     * If your custom infobar overrides this function, YOU'RE PROBABLY DOING SOMETHING WRONG.
-     *
-     * Adds buttons to the infobar.  This should only be overridden in cases where an infobar
-     * requires adding something other than a button for its secondary View on the bottom row
-     * (almost never).
+     * Specifies whether or not this infobar should display a toggle asking the user if they want to
+     * save their choice.
      *
-     * @param primaryText Text to display on the primary button.
-     * @param secondaryText Text to display on the secondary button.  May be null.
+     * @param showPersistenceToggle True if the toggle should be displayed.
      */
-    protected void setButtons(InfoBarLayout layout, String primaryText, String secondaryText) {
-        layout.setButtons(primaryText, secondaryText);
+    private void setShowPersistenceToggle(boolean showPersistenceToggle) {
+        mShowPersistenceToggle = showPersistenceToggle;
     }
 
     private static boolean hasPermission(Context context, String permission) {
@@ -215,7 +212,20 @@ public class ConfirmInfoBar extends InfoBar {
     }
 
     /**
-     * Creates and begins the process for showing a ConfirmInfoBar.
+     * Returns true if the persist switch exists and is toggled on.
+     */
+    @CalledByNative
+    private boolean isPersistSwitchOn() {
+        SwitchCompat persistSwitch = (SwitchCompat) getView().findViewById(
+                R.id.permission_infobar_persist_toggle);
+        if (mShowPersistenceToggle && persistSwitch != null) {
+            return persistSwitch.isChecked();
+        }
+        return false;
+    }
+
+    /**
+     * Creates and begins the process for showing a PermissionInfoBar.
      * @param windowAndroid The owning window for the infobar.
      * @param enumeratedIconId ID corresponding to the icon that will be shown for the infobar.
      *                         The ID must have been mapped using the ResourceMapper class before
@@ -227,16 +237,19 @@ public class ConfirmInfoBar extends InfoBar {
      * @param buttonOk String to display on the OK button.
      * @param buttonCancel String to display on the Cancel button.
      * @param contentSettings The list of ContentSettingTypes being requested by this infobar.
+     * @param showPersistenceToggle Whether or not a toggle to opt-out of persisting a decision
+     *                              should be displayed.
      */
     @CalledByNative
-    private static ConfirmInfoBar create(WindowAndroid windowAndroid, int enumeratedIconId,
+    private static PermissionInfoBar create(WindowAndroid windowAndroid, int enumeratedIconId,
             Bitmap iconBitmap, String message, String linkText, String buttonOk,
-            String buttonCancel, int[] contentSettings) {
+            String buttonCancel, int[] contentSettings, boolean showPersistenceToggle) {
         int drawableId = ResourceId.mapToDrawableId(enumeratedIconId);
 
-        ConfirmInfoBar infoBar = new ConfirmInfoBar(
-                drawableId, iconBitmap, message, linkText, buttonOk, buttonCancel);
+        PermissionInfoBar infoBar = new PermissionInfoBar(drawableId, iconBitmap, message, linkText,
+                buttonOk, buttonCancel);
         infoBar.setContentSettings(windowAndroid, contentSettings);
+        infoBar.setShowPersistenceToggle(showPersistenceToggle);
 
         return infoBar;
     }