Changing PluginPrefs to use PluginFinder's async interface.

chrome/browser/component_updater/pepper_flash_component_installer.cc

 // 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/component_updater/flash_component_installer.h"
 
 #include <string.h>
 
 #include <vector>
 
@@ skipping 147 matching lines @@
                                           kFlashPluginSwfExtension,
                                           kFlashPluginName);
   plugin_info->mime_types.push_back(swf_mime_type);
   webkit::WebPluginMimeType spl_mime_type(kFlashPluginSplMimeType,
                                           kFlashPluginSplExtension,
                                           kFlashPluginName);
   plugin_info->mime_types.push_back(spl_mime_type);
   return true;
 }
 
+void CanEnablePluginCallbackDoNothing(bool dummy) {
+  // Ignore the state-change check result.
+}
+
 // If it is a |fresh_install| we enable or disable it by default in some
 // configurations. See IsPepperFlashEnabledByDefault() for more information.
 void RegisterPepperFlashWithChrome(const FilePath& path,
                                    const Version& version,
                                    bool fresh_install) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   content::PepperPluginInfo plugin_info;
   if (!MakePepperFlashPluginInfo(path, version, true, &plugin_info))
     return;
   bool enable_by_default = IsPepperFlashEnabledByDefault();
   if (fresh_install)
-    PluginPrefs::EnablePluginGlobally(enable_by_default, plugin_info.path,
-                                      base::Bind(&base::DoNothing));
+    PluginPrefs::EnablePluginGlobally(
+        enable_by_default,
+        plugin_info.path,
+        base::Bind(&CanEnablePluginCallbackDoNothing));
 
   bool add_to_front = enable_by_default;
   PluginService::GetInstance()->RegisterInternalPlugin(
       plugin_info.ToWebPluginInfo(), add_to_front);
   PluginService::GetInstance()->RefreshPlugins();
 }
 
 // Returns true if this browser implements one of the interfaces given in
 // |interface_string|, which is a '|'-separated string of interface names.
 bool CheckPepperFlashInterfaceString(const std::string& interface_string) {
@@ skipping 169 matching lines @@
 }
 
 }  // namespace
 
 void RegisterPepperFlashComponent(ComponentUpdateService* cus) {
 #if defined(GOOGLE_CHROME_BUILD)
   BrowserThread::PostTask(BrowserThread::FILE, FROM_HERE,
                           base::Bind(&StartPepperFlashUpdateRegistration, cus));
 #endif
 }