Fix the handling of user gestures for external protocol handler dialogs.

chrome/browser/prerender/prerender_browsertest.cc

Index: chrome/browser/prerender/prerender_browsertest.cc
diff --git a/chrome/browser/prerender/prerender_browsertest.cc b/chrome/browser/prerender/prerender_browsertest.cc
index f33bd843981afda07759a13310e3b523e9a8f71c..225a100c87da14b543bee3277aaf2fd3ee8aae79 100644
--- a/chrome/browser/prerender/prerender_browsertest.cc
+++ b/chrome/browser/prerender/prerender_browsertest.cc
@@ -965,7 +965,7 @@ class NeverRunsExternalProtocolHandlerDelegate
     return NULL;
   }
   virtual ExternalProtocolHandler::BlockState GetBlockState(
-      const std::string& scheme) OVERRIDE {
+      const std::string& scheme, bool user_gesture) OVERRIDE {
     // Block everything and fail the test.
     ADD_FAILURE();
     return ExternalProtocolHandler::BLOCK;