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

chrome/browser/ui/cocoa/apps/native_app_window_cocoa_browsertest.mm

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #import "chrome/browser/ui/cocoa/apps/native_app_window_cocoa.h"
 
 #import <Cocoa/Cocoa.h>
 
 #include "base/mac/mac_util.h"
 #include "base/mac/sdk_forward_declarations.h"
 #include "chrome/browser/apps/app_browsertest_util.h"
 #include "chrome/browser/profiles/profile.h"
+#include "chrome/browser/ui/extensions/app_launch_params.h"
 #include "chrome/browser/ui/extensions/application_launch.h"
 #include "content/public/browser/notification_service.h"
 #include "content/public/test/test_utils.h"
 #include "extensions/browser/app_window/app_window_registry.h"
+#include "extensions/common/constants.h"
 
 using extensions::PlatformAppBrowserTest;
 
 namespace {
 
 class NativeAppWindowCocoaBrowserTest : public PlatformAppBrowserTest {
  protected:
   NativeAppWindowCocoaBrowserTest() {}
 
   void SetUpAppWithWindows(int num_windows) {
     app_ = InstallExtension(
         test_data_dir_.AppendASCII("platform_apps").AppendASCII("minimal"), 1);
     EXPECT_TRUE(app_);
 
     for (int i = 0; i < num_windows; ++i) {
       content::WindowedNotificationObserver app_loaded_observer(
           content::NOTIFICATION_LOAD_COMPLETED_MAIN_FRAME,
           content::NotificationService::AllSources());
       OpenApplication(
-          AppLaunchParams(profile(),
-                          app_,
-                          extensions::LAUNCH_CONTAINER_NONE,
-                          NEW_WINDOW));
+          AppLaunchParams(profile(), app_, extensions::LAUNCH_CONTAINER_NONE,
+                          NEW_WINDOW, extensions::SOURCE_UNTRACKED));
       app_loaded_observer.Wait();
     }
   }
 
   const extensions::Extension* app_;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(NativeAppWindowCocoaBrowserTest);
 };
 
@@ skipping 153 matching lines @@
   watcher.reset([[ScopedNotificationWatcher alloc]
       initWithNotification:NSWindowDidExitFullScreenNotification
                  andObject:ns_window]);
   [ns_window toggleFullScreen:nil];
   [watcher waitForNotification];
   EXPECT_EQ(extensions::AppWindow::FULLSCREEN_TYPE_NONE,
             app_window->fullscreen_types_for_test());
   EXPECT_FALSE(window->IsFullscreen());
   EXPECT_FALSE([ns_window styleMask] & NSFullScreenWindowMask);
 }