Disable off-store extension installs by default.

chrome/browser/ui/intents/web_intent_picker_controller_browsertest.cc

Index: chrome/browser/ui/intents/web_intent_picker_controller_browsertest.cc
diff --git a/chrome/browser/ui/intents/web_intent_picker_controller_browsertest.cc b/chrome/browser/ui/intents/web_intent_picker_controller_browsertest.cc
index df67227baf05bf509358316f966fab1482d6a580..1acae9b1d48e0a0e6b5b7c1939dd3c3b2ca89393 100644
--- a/chrome/browser/ui/intents/web_intent_picker_controller_browsertest.cc
+++ b/chrome/browser/ui/intents/web_intent_picker_controller_browsertest.cc
@@ -211,6 +211,9 @@ class WebIntentPickerControllerBrowserTest : public InProcessBrowserTest {
 
     net::HostPortPair host_port = test_server()->host_port_pair();
     command_line->AppendSwitchASCII(
+        switches::kAppsGalleryURL,
+        base::StringPrintf("http://www.example.com:%d", host_port.port()));
+    command_line->AppendSwitchASCII(
         switches::kAppsGalleryDownloadURL,
         base::StringPrintf(
             "http://www.example.com:%d/files/extensions/intents/%%s.crx",