Add Notification images (Android without custom layouts)

chrome/android/java/src/org/chromium/chrome/browser/notifications/NotificationBuilderBase.java

Index: chrome/android/java/src/org/chromium/chrome/browser/notifications/NotificationBuilderBase.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/notifications/NotificationBuilderBase.java b/chrome/android/java/src/org/chromium/chrome/browser/notifications/NotificationBuilderBase.java
index ffb3136b989940c66705fdf6111be7510e2e6963..9bde913907ab8f554b7979de6765544f8b1cb066 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/notifications/NotificationBuilderBase.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/notifications/NotificationBuilderBase.java
@@ -65,6 +65,7 @@ public abstract class NotificationBuilderBase {
     protected CharSequence mBody;
     protected CharSequence mOrigin;
     protected CharSequence mTickerText;
+    protected Bitmap mImage;
     protected Bitmap mLargeIcon;
     protected int mSmallIconId;
     protected Bitmap mSmallIconBitmap;
@@ -115,6 +116,14 @@ public abstract class NotificationBuilderBase {
     }
 
     /**
+     * Sets the content image to be prominently displayed when the notification is expanded.
+     */
+    public NotificationBuilderBase setImage(@Nullable Bitmap image) {
+        mImage = image;
+        return this;
+    }
+
+    /**
      * Sets the large icon that is shown in the notification.
      */
     public NotificationBuilderBase setLargeIcon(@Nullable Bitmap icon) {