Combine Physical Web URLs into groups

chrome/android/javatests/src/org/chromium/chrome/browser/physicalweb/MockPwsClient.java

Index: chrome/android/javatests/src/org/chromium/chrome/browser/physicalweb/MockPwsClient.java
diff --git a/chrome/android/javatests/src/org/chromium/chrome/browser/physicalweb/MockPwsClient.java b/chrome/android/javatests/src/org/chromium/chrome/browser/physicalweb/MockPwsClient.java
index 296bf7b38669d7324b3813a3de894307f2e6cddc..c52b276e686a198564ae159cb07d26ecabadf7b7 100644
--- a/chrome/android/javatests/src/org/chromium/chrome/browser/physicalweb/MockPwsClient.java
+++ b/chrome/android/javatests/src/org/chromium/chrome/browser/physicalweb/MockPwsClient.java
@@ -41,6 +41,20 @@ class MockPwsClient implements PwsClient {
         mPwsResults.add(pwsResults);
     }
 
+    public void addPwsResult(PwsResult pwsResult) {
+        List<PwsResult> pwsResults = new ArrayList<>();
+        pwsResults.add(pwsResult);
+        addPwsResults(pwsResults);
+    }
+
+    public void addCombinedPwsResults() {
+        List<PwsResult> pwsResults = new ArrayList<>();
+        for (List<PwsResult> subList : mPwsResults) {
+            pwsResults.addAll(subList);
+        }
+        addPwsResults(pwsResults);
+    }
+
     public void addIconBitmap(Bitmap iconBitmap) {
         mIconBitmaps.add(iconBitmap);
     }