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

chrome/browser/ui/extensions/application_launch.cc

 // Copyright (c) 2012 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.
 
 #include "chrome/browser/ui/extensions/application_launch.h"
 
 #include <string>
 
 #include "apps/launcher.h"
 #include "base/metrics/histogram.h"
 #include "chrome/browser/apps/per_app_settings_service.h"
 #include "chrome/browser/apps/per_app_settings_service_factory.h"
 #include "chrome/browser/extensions/extension_service.h"
 #include "chrome/browser/extensions/tab_helper.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/ui/app_list/app_list_service.h"
 #include "chrome/browser/ui/extensions/app_launch_params.h"
 #include "chrome/browser/ui/extensions/application_launch_web_app.h"
 #include "chrome/browser/ui/extensions/extension_enable_flow.h"
 #include "chrome/browser/ui/extensions/extension_enable_flow_delegate.h"
 #include "chrome/common/extensions/manifest_handlers/app_launch_info.h"
 #include "chrome/common/url_constants.h"
 #include "content/public/browser/web_contents.h"
 #include "extensions/browser/extension_prefs.h"
 #include "extensions/browser/extension_registry.h"
 #include "extensions/browser/extension_system.h"
+#include "extensions/common/constants.h"
 #include "extensions/common/extension.h"
 #include "extensions/common/features/feature.h"
 #include "extensions/common/features/feature_provider.h"
 #include "extensions/common/manifest_handlers/options_page_info.h"
 
 using content::WebContents;
 using extensions::Extension;
 using extensions::ExtensionPrefs;
 using extensions::ExtensionRegistry;
 
@@ skipping 176 matching lines @@
         service, profile, extension->id(), dialog_parent_window_getter,
         base::Bind(base::IgnoreResult(OpenEnabledApplication), params)))->Run();
     return;
   }
 
   OpenEnabledApplication(params);
 }
 
 WebContents* OpenAppShortcutWindow(Profile* profile,
                                    const GURL& url) {
-  AppLaunchParams launch_params(
-      profile,
-      NULL,  // this is a URL app.  No extension.
-      extensions::LAUNCH_CONTAINER_WINDOW,
-      NEW_WINDOW);
+  AppLaunchParams launch_params(profile,
+                                NULL,  // this is a URL app.  No extension.
+                                extensions::LAUNCH_CONTAINER_WINDOW, NEW_WINDOW,
+                                extensions::SOURCE_COMMAND_LINE);
   launch_params.override_url = url;
 
   WebContents* tab = OpenWebAppWindow(launch_params, url);
 
   if (!tab)
     return NULL;
 
   extensions::TabHelper::FromWebContents(tab)->UpdateShortcutOnLoadComplete();
 
   return tab;
 }
 
 bool CanLaunchViaEvent(const extensions::Extension* extension) {
   const extensions::FeatureProvider* feature_provider =
       extensions::FeatureProvider::GetAPIFeatures();
   extensions::Feature* feature = feature_provider->GetFeature("app.runtime");
   return feature->IsAvailableToExtension(extension).is_available();
 }