Add a new field "source" in launchData of chrome.app.runtime.onLaunched() to trace launch source.

extensions/shell/browser/shell_extension_system.cc

 // Copyright 2014 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 "extensions/shell/browser/shell_extension_system.h"
 
 #include <string>
 
 #include "base/files/file_path.h"
 #include "base/files/file_util.h"
 #include "content/public/browser/browser_context.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/notification_details.h"
 #include "content/public/browser/notification_service.h"
 #include "content/public/browser/notification_source.h"
 #include "extensions/browser/api/app_runtime/app_runtime_api.h"
 #include "extensions/browser/event_router.h"
 #include "extensions/browser/extension_prefs.h"
 #include "extensions/browser/extension_registry.h"
 #include "extensions/browser/info_map.h"
 #include "extensions/browser/lazy_background_task_queue.h"
 #include "extensions/browser/notification_types.h"
 #include "extensions/browser/process_manager.h"
 #include "extensions/browser/quota_service.h"
 #include "extensions/browser/runtime_data.h"
+#include "extensions/common/constants.h"
 #include "extensions/common/file_util.h"
 
 using content::BrowserContext;
 using content::BrowserThread;
 
 namespace extensions {
 
 ShellExtensionSystem::ShellExtensionSystem(BrowserContext* browser_context)
     : browser_context_(browser_context) {
 }
@@ skipping 38 matching lines @@
   content::NotificationService::current()->Notify(
       extensions::NOTIFICATION_EXTENSIONS_READY_DEPRECATED,
       content::Source<BrowserContext>(browser_context_),
       content::NotificationService::NoDetails());
   return true;
 }
 
 void ShellExtensionSystem::LaunchApp() {
   // Send the onLaunched event.
   DCHECK(extension_.get());
-  AppRuntimeEventRouter::DispatchOnLaunchedEvent(browser_context_,
-                                                 extension_.get());
+  AppRuntimeEventRouter::DispatchOnLaunchedEvent(
+      browser_context_, extension_.get(), extensions::SOURCE_ATHENA);

[benwells, 2014/10/28 21:22:48]

This should probably be SOURCE_UNKNOWN.

[cylee1, 2014/10/29 16:40:00]

Done.

 }
 
 void ShellExtensionSystem::Shutdown() {
 }
 
 void ShellExtensionSystem::InitForRegularProfile(bool extensions_enabled) {
   runtime_data_.reset(
       new RuntimeData(ExtensionRegistry::Get(browser_context_)));
   lazy_background_task_queue_.reset(
       new LazyBackgroundTaskQueue(browser_context_));
@@ skipping 96 matching lines @@
   return empty.PassAs<ExtensionSet>();
 }
 
 DeclarativeUserScriptMaster*
 ShellExtensionSystem::GetDeclarativeUserScriptMasterByExtension(
     const ExtensionId& extension_id) {
   return NULL;
 }
 
 }  // namespace extensions