Convert the async device ID getter to a chrome resource host

chrome/browser/chrome_content_browser_client.h

 // 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.
 
 #ifndef CHROME_BROWSER_CHROME_CONTENT_BROWSER_CLIENT_H_
 #define CHROME_BROWSER_CHROME_CONTENT_BROWSER_CLIENT_H_
 
 #include <set>
 #include <string>
 #include <utility>
@@ skipping 180 matching lines @@
   virtual void UpdateInspectorSetting(content::RenderViewHost* rvh,
                                       const std::string& key,
                                       const std::string& value) OVERRIDE;
   virtual void ClearInspectorSettings(content::RenderViewHost* rvh) OVERRIDE;
   virtual void BrowserURLHandlerCreated(
       content::BrowserURLHandler* handler) OVERRIDE;
   virtual void ClearCache(content::RenderViewHost* rvh) OVERRIDE;
   virtual void ClearCookies(content::RenderViewHost* rvh) OVERRIDE;
   virtual FilePath GetDefaultDownloadDirectory() OVERRIDE;
   virtual std::string GetDefaultDownloadName() OVERRIDE;
+  virtual void DidCreatePpapiPlugin(
+      content::BrowserPpapiHost* browser_host) OVERRIDE;
   virtual bool AllowPepperSocketAPI(content::BrowserContext* browser_context,
                                     const GURL& url) OVERRIDE;
   virtual bool AllowPepperPrivateFileAPI() OVERRIDE;
 
 #if defined(OS_POSIX) && !defined(OS_MACOSX)
   virtual void GetAdditionalMappedFilesForChildProcess(
       const CommandLine& command_line,
       base::GlobalDescriptors::Mapping* mappings) OVERRIDE;
 #endif
 #if defined(OS_WIN)
@@ skipping 25 matching lines @@
   // Cached version of the locale so we can return the locale on the I/O
   // thread.
   std::string io_thread_application_locale_;
 
   DISALLOW_COPY_AND_ASSIGN(ChromeContentBrowserClient);
 };
 
 }  // namespace chrome
 
 #endif  // CHROME_BROWSER_CHROME_CONTENT_BROWSER_CLIENT_H_