Combine Physical Web URLs into groups

chrome/android/java/src/org/chromium/chrome/browser/physicalweb/NearbyUrlsAdapter.java

Index: chrome/android/java/src/org/chromium/chrome/browser/physicalweb/NearbyUrlsAdapter.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/physicalweb/NearbyUrlsAdapter.java b/chrome/android/java/src/org/chromium/chrome/browser/physicalweb/NearbyUrlsAdapter.java
index f01caabc40de642026eddb949f7dc4edab078296..0ba4b8aedb309e2be67c44f50dbfc57762002fea 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/physicalweb/NearbyUrlsAdapter.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/physicalweb/NearbyUrlsAdapter.java
@@ -53,6 +53,20 @@ class NearbyUrlsAdapter extends ArrayAdapter<PwsResult> {
     }
 
     /**
+     * Return true if we already know we have a given groupId.
+     * @param groupId The requested groupId
+     * @return true if a PwsResult is present that has the given groupId
+     */
+    public boolean hasGroupId(String groupId) {
+        for (int position = 0; position < getCount(); ++position) {
+            if (groupId.equals(getItem(position).groupId)) {
+                return true;
+            }
+        }
+        return false;
+    }
+
+    /**
      * Get the view for an item in the data set.
      * @param position Index of the list view item within the array.
      * @param view The old view to reuse, if possible.