Installing a platform application will add all application shortucts.

chrome/browser/extensions/extension_service.h

Index: chrome/browser/extensions/extension_service.h
diff --git a/chrome/browser/extensions/extension_service.h b/chrome/browser/extensions/extension_service.h
index 67b0f4dcc6a9efbc8c16dec0d7746f0297a31b37..4060bd5e84f292a4a603db2c06bf66396a8ce163 100644
--- a/chrome/browser/extensions/extension_service.h
+++ b/chrome/browser/extensions/extension_service.h
@@ -37,6 +37,7 @@
 #include "chrome/browser/extensions/process_map.h"
 #include "chrome/browser/extensions/sandboxed_extension_unpacker.h"
 #include "chrome/browser/prefs/pref_change_registrar.h"
+#include "chrome/browser/shell_integration.h"
 #include "chrome/browser/sync/api/sync_change.h"
 #include "chrome/browser/sync/api/syncable_service.h"
 #include "chrome/common/extensions/extension.h"
@@ -130,7 +131,8 @@ class ExtensionService
     : public ExtensionServiceInterface,
       public ExternalExtensionProviderInterface::VisitorInterface,
       public base::SupportsWeakPtr<ExtensionService>,
-      public content::NotificationObserver {
+      public content::NotificationObserver,
+      public ImageLoadingTracker::Observer {
  public:
   using base::SupportsWeakPtr<ExtensionService>::AsWeakPtr;
 
@@ -569,6 +571,13 @@ class ExtensionService
     return &extension_warnings_;
   }
 
+  // Implement ImageLoadingTracker::Observer. |tracker_| is used to
+  // load the application's icon, which is done when we start creating an
+  // application's shortcuts. This method receives the icon, and completes
+  // the process of installing the shortcuts.
+  virtual void OnImageLoaded(SkBitmap* image,
+                             const ExtensionResource& resource,
+                             int index) OVERRIDE;
  private:
   // Bundle of type (app or extension)-specific sync stuff.
   struct SyncBundle {
@@ -683,6 +692,10 @@ class ExtensionService
   // a NaCl module to see those changes reflected in the PluginList.
   void UpdatePluginListWithNaClModules();
 
+  // Start the process of installing an application shortcut.
+  // The process is finished when OnImageLoaded is called.
+  void StartInstallApplicationShortcut(const Extension* extension);
+
   NaClModuleInfoList::iterator FindNaClModule(const GURL& url);
 
   // The profile this ExtensionService is part of.
@@ -821,6 +834,10 @@ class ExtensionService
 
   extensions::ProcessMap process_map_;
 
+  // Fields used when installing application shortcuts.
+  ShellIntegration::ShortcutInfo shortcut_info_;
+  ImageLoadingTracker tracker_;
+
   FRIEND_TEST_ALL_PREFIXES(ExtensionServiceTest,
                            InstallAppsWithUnlimtedStorage);
   FRIEND_TEST_ALL_PREFIXES(ExtensionServiceTest,