Ensure web page clicks off SERP are loaded in Chrome.

chrome/android/javatests/src/org/chromium/chrome/browser/externalnav/ExternalNavigationHandlerTest.java

Index: chrome/android/javatests/src/org/chromium/chrome/browser/externalnav/ExternalNavigationHandlerTest.java
diff --git a/chrome/android/javatests/src/org/chromium/chrome/browser/externalnav/ExternalNavigationHandlerTest.java b/chrome/android/javatests/src/org/chromium/chrome/browser/externalnav/ExternalNavigationHandlerTest.java
index c07f5f484abec03c1fc902b4adc0b01d2c7f849b..04f0579d074f9b4daf3a52b3fcee17bda8a3b8f2 100644
--- a/chrome/android/javatests/src/org/chromium/chrome/browser/externalnav/ExternalNavigationHandlerTest.java
+++ b/chrome/android/javatests/src/org/chromium/chrome/browser/externalnav/ExternalNavigationHandlerTest.java
@@ -1138,6 +1138,11 @@ public class ExternalNavigationHandlerTest extends NativeLibraryTestBase {
             return false;
         }
 
+        @Override
+        public boolean isSerpReferrer(String referrerUrl, Tab tab) {
+            return false;
+        }
+
         public void reset() {
             startActivityIntent = null;
             startIncognitoIntentCalled = false;