Make "source" a required argument of AppLaunchParams and fill in the argument in all call points.

chrome/browser/ui/browser_browsertest.cc

Index: chrome/browser/ui/browser_browsertest.cc
diff --git a/chrome/browser/ui/browser_browsertest.cc b/chrome/browser/ui/browser_browsertest.cc
index c7e91e182fe3609f82729433fec59282d8fd8976..cb1a8daf34052a48277ee93cabf34ff6458c6832 100644
--- a/chrome/browser/ui/browser_browsertest.cc
+++ b/chrome/browser/ui/browser_browsertest.cc
@@ -40,6 +40,7 @@
 #include "chrome/browser/ui/browser_tabstrip.h"
 #include "chrome/browser/ui/browser_ui_prefs.h"
 #include "chrome/browser/ui/browser_window.h"
+#include "chrome/browser/ui/extensions/app_launch_params.h"
 #include "chrome/browser/ui/extensions/application_launch.h"
 #include "chrome/browser/ui/host_desktop.h"
 #include "chrome/browser/ui/startup/startup_browser_creator.h"
@@ -84,6 +85,7 @@
 #include "extensions/browser/extension_registry.h"
 #include "extensions/browser/extension_system.h"
 #include "extensions/browser/uninstall_reason.h"
+#include "extensions/common/constants.h"
 #include "extensions/common/extension.h"
 #include "extensions/common/extension_set.h"
 #include "net/dns/mock_host_resolver.h"
@@ -1342,11 +1344,9 @@ IN_PROC_BROWSER_TEST_F(BrowserTest, ShouldShowLocationBar) {
   const Extension* extension_app = GetExtension();
 
   // Launch it in a window, as AppLauncherHandler::HandleLaunchApp() would.
-  WebContents* app_window =
-      OpenApplication(AppLaunchParams(browser()->profile(),
-                                      extension_app,
-                                      extensions::LAUNCH_CONTAINER_WINDOW,
-                                      NEW_WINDOW));
+  WebContents* app_window = OpenApplication(AppLaunchParams(
+      browser()->profile(), extension_app, extensions::LAUNCH_CONTAINER_WINDOW,
+      NEW_WINDOW, extensions::SOURCE_UNTRACKED));
   ASSERT_TRUE(app_window);
 
   DevToolsWindow* devtools_window =
@@ -1536,9 +1536,9 @@ IN_PROC_BROWSER_TEST_F(BrowserTest, OpenAppWindowLikeNtp) {
   const Extension* extension_app = GetExtension();
 
   // Launch it in a window, as AppLauncherHandler::HandleLaunchApp() would.
-  WebContents* app_window = OpenApplication(
-      AppLaunchParams(browser()->profile(), extension_app,
-                      extensions::LAUNCH_CONTAINER_WINDOW, NEW_WINDOW));
+  WebContents* app_window = OpenApplication(AppLaunchParams(
+      browser()->profile(), extension_app, extensions::LAUNCH_CONTAINER_WINDOW,
+      NEW_WINDOW, extensions::SOURCE_UNTRACKED));
   ASSERT_TRUE(app_window);
 
   // Apps launched in a window from the NTP have an extensions tab helper but