Remove unused Flash-related code:

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 178 matching lines @@
     // If the version we're trying to register is older than the existing one,
     // don't do it.
     if (version.IsOlderThan(UTF16ToUTF8(it->version)))
       return;
 
     // If the version is newer, remove the old one first.
     PluginService::GetInstance()->UnregisterInternalPlugin(it->path);
     break;
   }
 
-  bool add_to_front = IsPepperFlashEnabledByDefault();
   PluginService::GetInstance()->RegisterInternalPlugin(
-      plugin_info.ToWebPluginInfo(), add_to_front);
+      plugin_info.ToWebPluginInfo(), true);
   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) {
   std::vector<std::string> interface_names;
   base::SplitString(interface_string, '|', &interface_names);
   for (size_t i = 0; i < interface_names.size(); i++) {
     if (SupportsPepperInterface(interface_names[i].c_str()))
@@ skipping 167 matching lines @@
 #endif  // defined(GOOGLE_CHROME_BUILD)
 
 }  // namespace
 
 void RegisterPepperFlashComponent(ComponentUpdateService* cus) {
 #if defined(GOOGLE_CHROME_BUILD)
   BrowserThread::PostTask(BrowserThread::FILE, FROM_HERE,
                           base::Bind(&StartPepperFlashUpdateRegistration, cus));
 #endif
 }