Video Player: Install the cast API extension if it is not installed.

chrome/browser/chromeos/file_manager/app_installer.cc

 // Copyright 2013 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/chromeos/file_manager/app_installer.h"
 
 #include "chrome/common/extensions/webstore_install_result.h"
 #include "content/public/browser/web_contents.h"
 #include "content/public/browser/web_contents_observer.h"
 
@@ skipping 18 matching lines @@
 
  private:
   AppInstaller* parent_;
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(WebContentsObserver);
 };
 
 AppInstaller::AppInstaller(content::WebContents* web_contents,
                            const std::string& item_id,
                            Profile* profile,
+                           bool silent_installation,
                            const Callback& callback)
     : extensions::WebstoreStandaloneInstaller(item_id, profile, callback),
+      silent_installation_(silent_installation),
       callback_(callback),
       web_contents_(web_contents),
       web_contents_observer_(new WebContentsObserver(web_contents, this)) {
 }
 
 AppInstaller::~AppInstaller() {}
 
 bool AppInstaller::CheckRequestorAlive() const {
   // The tab may have gone away - cancel installation in that case.
   return web_contents_ != NULL;
 }
 
 const GURL& AppInstaller::GetRequestorURL() const {
   return GURL::EmptyGURL();
 }
 
 scoped_refptr<ExtensionInstallPrompt::Prompt>
 AppInstaller::CreateInstallPrompt() const {
+  if (silent_installation_)
+    return NULL;
+
   scoped_refptr<ExtensionInstallPrompt::Prompt> prompt(
       new ExtensionInstallPrompt::Prompt(
           ExtensionInstallPrompt::INLINE_INSTALL_PROMPT));
 
   prompt->SetWebstoreData(localized_user_count(),
                           show_user_count(),
                           average_rating(),
                           rating_count());
   return prompt;
 }
@@ skipping 28 matching lines @@
 
 void AppInstaller::OnWebContentsDestroyed(
     content::WebContents* web_contents) {
   callback_.Run(false,
                 kWebContentsDestroyedError,
                 extensions::webstore_install::OTHER_ERROR);
   AbortInstall();
 }
 
 }  // namespace file_manager