Start app shim when app launched.

chrome/browser/web_applications/web_app.h

Index: chrome/browser/web_applications/web_app.h
diff --git a/chrome/browser/web_applications/web_app.h b/chrome/browser/web_applications/web_app.h
index 0ddf31da85b6964b81eeae94f426586ceedc6c4e..406f4eabd2b1ba95718b9e8784b25d4fc87bb3d6 100644
--- a/chrome/browser/web_applications/web_app.h
+++ b/chrome/browser/web_applications/web_app.h
@@ -8,6 +8,7 @@
 #include <string>
 #include <vector>
 
+#include "base/callback.h"

[tapted, 2013/05/21 08:33:25]

this can go

[jackhou1, 2013/05/28 06:50:33]

Done.

 #include "base/files/file_path.h"
 #include "build/build_config.h"
 #include "chrome/browser/shell_integration.h"
@@ -21,6 +22,8 @@ namespace gfx {
 class ImageFamily;
 }
 
+class Profile;
+
 namespace web_app {
 
 // Gets the user data directory for given web app. The path for the directory is
@@ -95,6 +98,16 @@ std::string GetWMClassFromAppName(std::string app_name);
 // Gets the name of the Chrome Apps menu folder in which to place app shortcuts.
 string16 GetAppShortcutsSubdirName();
 
+
+// If necessary, launch the shortcut for an app.
+#if defined(OS_MACOSX)

[tapted, 2013/05/21 08:33:25]

I think it will be a bit cleaner to just have the first case here, but in
web_app.cc, have a no-op definition guarded by !defined(OS_MACOSX)

[jackhou1, 2013/05/28 06:50:33]

Done.

+void MaybeLaunchShortcut(Profile* profile,
+                         const extensions::Extension* extension);
+#else
+void MaybeLaunchShortcut(Profile* profile,
+                         const extensions::Extension* extension) {}
+#endif
+
 namespace internals {
 
 #if defined(OS_WIN)