Added flag --enable-hosted-app-shim-creation.

chrome/browser/ui/cocoa/browser_window_cocoa.mm

 // 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/cocoa/browser_window_cocoa.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/logging.h"
 #include "base/mac/mac_util.h"
@@ skipping 570 matching lines @@
     extensions::SetLaunchType(service, extension_id, launch_type);
 
     // Update name of app.
     NSString* new_title = [app_title stringValue];
     if (![original_title isEqualToString:new_title]) {
       WebApplicationInfo new_web_app_info(web_app_info);
       new_web_app_info.title = base::SysNSStringToUTF16(new_title);
       extensions::CreateOrUpdateBookmarkApp(service, &new_web_app_info);
     }
 
-    extensions::ExtensionRegistry* registry =
-        extensions::ExtensionRegistry::Get(profile);
-    const extensions::Extension* app = registry->GetExtensionById(
-        extension_id, extensions::ExtensionRegistry::ENABLED);
+    // If we're not creating app shims, no need to reveal it in Finder.
+    if (base::CommandLine::ForCurrentProcess()->HasSwitch(
+            switches::kEnableHostedAppShimCreation)) {
+      extensions::ExtensionRegistry* registry =
+          extensions::ExtensionRegistry::Get(profile);
+      const extensions::Extension* app = registry->GetExtensionById(
+          extension_id, extensions::ExtensionRegistry::ENABLED);
 
-    web_app::RevealAppShimInFinderForApp(profile, app);
+      web_app::RevealAppShimInFinderForApp(profile, app);
+    }
   } else {
     service->UninstallExtension(extension_id,
                                 extensions::UNINSTALL_REASON_INSTALL_CANCELED,
                                 base::Bind(&base::DoNothing), NULL);
   }
 }
 
 void BrowserWindowCocoa::ShowTranslateBubble(
     content::WebContents* contents,
     translate::TranslateStep step,
@@ skipping 200 matching lines @@
   if (browser_->bookmark_bar_state() != BookmarkBar::DETACHED)
     return 0;
   return 40;
 }
 
 void BrowserWindowCocoa::ExecuteExtensionCommand(
     const extensions::Extension* extension,
     const extensions::Command& command) {
   [cocoa_controller() executeExtensionCommand:extension->id() command:command];
 }